362 free tools · no account · privacy friendly

Find the right tool. Finish the job.

Practical browser tools organised for developers, designers, SEO specialists and people running real websites and servers.

Showing all 362 tools

SEO

SEO & Web Publishing

Search visibility, metadata, sharing, sitemaps and browser delivery.

14
Aa

Text & Data

Format, convert, compare and inspect structured or plain text.

50
{ }

JSON Formatter

Format, validate and minify JSON with instant error pinpointing.

±

Diff Checker

Compare two blocks of text and see every added or removed line.

aA

Case Converter

camelCase, snake_case, kebab-case, PascalCase and friends.

#

Word Counter

Words, characters, sentences, paragraphs and reading time.

M↓

Markdown Preview

Write Markdown on the left, see rendered HTML on the right.

64

Base64 Encode / Decode

UTF-8 safe Base64 encoding and decoding, with a URL-safe mode.

%

URL Encoder / Decoder

Percent-encode or decode URLs and query string components.

kg→lb

Unit Converter

Length, weight, temperature and data sizes, converted instantly.

&;

HTML Entities

Escape and unescape HTML entities for safe markup.

≡

Line Toolkit

Sort, dedupe, reverse, number or shuffle lines of text in one click.

0x

Number Base Converter

Convert between binary, octal, decimal, hex and any base 2–36.

A#

ASCII Text Drawer

Turn a heading into large, copyable terminal-style text.

@

Email Normalizer

Normalize casing, whitespace and Gmail-style aliases for comparison.

☺

Emoji Picker

Search and copy a curated set of common emoji by keyword.

{}±

JSON Diff

Compare JSON structurally with clear added, removed and changed paths.

J↔T

JSON ↔ TOML

Convert simple nested key/value configuration between JSON and TOML.

J↔X

JSON ↔ XML

Convert common JSON structures to XML and XML back to JSON.

i18n

Numeronym Generator

Shorten long words into forms such as i18n and a11y.

%

Percentage Calculator

Solve percentage-of, change and reverse-percentage questions.

☎

Phone Parser & Formatter

Normalize phone digits into E.164-style numbers and call/WhatsApp links.

XIV

Roman Numeral Converter

Convert integers and Roman numerals in either direction.

URL

Outlook Safelink Decoder

Recover the original destination from Microsoft Safe Links URLs.

???

String Obfuscator

Obfuscate text as reversible Unicode escapes, Base64 or character codes.

01

Text ↔ Binary

Convert UTF-8 text into bytes, binary and back again.

ABC

NATO Phonetic Alphabet

Spell text using Alpha, Bravo, Charlie and the full NATO alphabet.

U+

Text ↔ Unicode

Inspect code points and convert Unicode escapes back to text.

T→J

TOML → JSON

Parse simple TOML-style key/value configuration into formatted JSON.

T↔Y

TOML ↔ YAML

Convert simple TOML-style key/value configuration to YAML and back.

XML

XML Formatter

Format, validate and minify XML in your browser.

X→J

XML → JSON

Convert XML elements, attributes and text into readable JSON.

Y↔T

YAML ↔ TOML

Convert simple YAML-style key/value configuration to TOML and back.

YML

YAML Viewer

Inspect simple YAML-style key/value configuration as formatted JSON.

Σ

CSV Data Profiler

Inspect columns, missing values, unique counts and inferred data types.

$.

JSON Path Explorer

Flatten JSON into searchable paths and values for quick inspection.

{}✓

JSON Schema Validator

Validate JSON against common JSON Schema types, requirements and constraints.

JL

JSON ↔ JSON Lines

Convert JSON arrays to newline-delimited JSON and back.

say

Text to Speech

Read text aloud using the voices already installed on your device.

5d

Business Day Calculator

Count working days between dates with optional public-holiday exclusion.

B32

Base32 Encode / Decode

Convert UTF-8 text to RFC 4648 Base32 and back.

B58

Base58 Encode / Decode

Convert text and bytes using the Bitcoin-style Base58 alphabet.

·−

Morse Code Translator

Translate text to International Morse code and decode it again.

NFC

Unicode Normalizer

Compare NFC, NFD, NFKC and NFKD forms and their code points.

Δt

Date Duration Calculator

Measure exact calendar and elapsed time between two dates.

age

Age Calculator

Calculate precise age and the countdown to the next birthday.

km

Coordinate Distance & Bearing

Calculate great-circle distance and initial bearing between two points.

fuel

Journey Fuel Cost

Estimate fuel use, total journey cost and per-person share.

£/h

Meeting Cost Calculator

Reveal the live and total cost of a meeting across attendees.

read

Readability Analyser

Estimate reading ease, grade level, sentence length and complexity.

≈

Text Similarity Checker

Compare two texts using word overlap and cosine similarity.

CSV✓

CSV Cleaner & Deduplicator

Trim cells, remove blank rows and deduplicate CSV records.

px

Design, CSS & Media

Images, colour, layout, audio, files and visual production.

36
◧

Color Converter

Convert between HEX, RGB and HSL, with tints and shades.

▧

CSS Gradient Generator

Build linear and radial gradients and copy the CSS.

❏

Box Shadow Generator

Dial in the perfect shadow with live preview and CSS output.

╭╮

Border Radius Playground

Shape each corner independently and copy the CSS (or the fancy 8-value form).

clamp

Fluid Type Calculator

Build a CSS clamp() that scales smoothly between two viewport sizes.

16:9

Aspect Ratio Calculator

Find the missing side, or get CSS aspect-ratio and padding-trick values.

px

px ↔ rem Converter

Convert pixels to rem (and back) with a live scale table.

img

Image Converter

Convert PNG, JPEG and WebP in your browser. Files never leave your device.

⤢

Image Resizer

Resize any image to exact pixels or a percentage, right in the browser.

▣

Image Compressor

Squeeze image file sizes down with a live quality preview.

b64

Image to Base64

Turn an image into a data URI with ready-made HTML and CSS snippets.

◩

Image Color Palette

Pull the dominant colors out of any image, or pick any pixel.

,{}

CSV ⇄ JSON

Convert CSV to JSON and back, with quoted fields handled properly.

|-|

Markdown Table Generator

Paste CSV or spreadsheet cells, get a tidy Markdown table.

⬆

Temp File Share

Upload a file, get a link that expires after a time or view limit.

pic

Picsum Photos

Grab a random Unsplash photo at any size, with grayscale and blur.

64

File ↔ Base64

Encode any file as Base64 or download decoded Base64 locally.

●

Camera Recorder

Record your camera locally and download the WebM video.

PDF✓

PDF Signature Checker

Inspect a PDF for digital-signature fields and signed byte ranges.

SVG

SVG Placeholder Generator

Create a lightweight downloadable image placeholder with dimensions and text.

Aa

Colour Contrast Checker

Check foreground and background colours against WCAG AA and AAA.

◉

Screen Recorder

Record a screen, window or browser tab and download it locally.

mic

Audio Recorder

Record your microphone and download the audio without uploading it.

scan

QR & Barcode Scanner

Scan QR codes and common barcodes from an image using your browser.

EXIF

Image Metadata Inspector

Inspect image dimensions, MIME type, file size and header details locally.

#file

File Checksum Calculator

Calculate SHA-1, SHA-256, SHA-384 and SHA-512 checksums locally.

data:

Data URI Generator

Turn any small file into a copyable Base64 data URI.

SRI

Subresource Integrity Generator

Generate browser-ready SRI hashes from a local script or stylesheet.

badge

README Badge Builder

Create Markdown badges with custom labels, values, colours and links.

crop

Image Cropper

Crop an image to exact coordinates and download the result locally.

eye

Colour Vision Preview

Preview an image with common colour-vision deficiency simulations.

Hz

Audio Tone Generator

Play sine, square, sawtooth and triangle waves at precise frequencies.

grid

CSS Grid Layout Builder

Generate responsive grid tracks, gaps and auto-fit card layouts.

flex

CSS Flexbox Builder

Build flex direction, alignment, wrapping, gaps and child growth rules.

@key

CSS Animation Builder

Generate keyframes, timing, iteration and reduced-motion handling.

var()

CSS Theme Token Generator

Generate light and dark custom-property tokens with automatic preferences.

JS

JavaScript & Frontend

JavaScript, TypeScript, React, Vue, jQuery, npm and browser APIs.

31
cdn

cdnjs Library Lookup

CDN URLs, versions and SRI hashes for libraries on cdnjs.

npm

npm Package Lookup

Versions, weekly downloads, license and links for any npm package.

</>

HTML WYSIWYG Editor

Edit rich content visually and copy its clean HTML.

CSS

CSS Minifier

Shrink CSS and see the exact byte saving, entirely locally.

HTML

HTML Minifier

Remove comments and unnecessary whitespace from HTML markup.

TS

JSON → TypeScript

Generate readable TypeScript interfaces from example JSON.

npm↓

npm Download Stats

Check recent npm package downloads across selectable time periods.

WS

WebSocket Client

Connect to a WebSocket endpoint, send messages and inspect events.

GQL

GraphQL Request Builder

Compose GraphQL queries, variables and ready-to-run cURL requests.

API

OpenAPI Explorer

Summarise endpoints, methods, tags and operations from an OpenAPI document.

pkg

package.json Explorer

Summarise scripts, dependencies, engines and package metadata.

1.2.3

Semantic Version Calculator

Bump versions and test whether versions satisfy common ranges.

fetch

JavaScript Fetch Builder

Generate robust Fetch API requests with headers, JSON and error handling.

retry

JavaScript Retry & Backoff Builder

Create an async retry helper with exponential delay and cancellation.

evt

JavaScript Event Delegation Builder

Generate efficient delegated DOM event handlers for dynamic elements.

ESM

JavaScript Module Generator

Scaffold an ES module class with private state, exports and lifecycle methods.

store

Web Storage Helper Builder

Generate typed JSON wrappers for localStorage or sessionStorage.

$.ajax

jQuery AJAX Builder

Generate a complete jQuery AJAX request with loading and failure states.

$()

jQuery Plugin Generator

Scaffold a chainable namespaced jQuery plugin with defaults and teardown.

form

jQuery Form Handler Builder

Generate validation, serialization and AJAX submission for a form.

$dom

jQuery DOM & Event Builder

Compose safe element creation, delegated events and DOM updates.

jsx

React Component Generator

Generate a typed functional component with props and accessible markup.

use…

React Hook Generator

Scaffold a reusable custom hook with state, effects and cleanup.

ctx

React Context Generator

Create a typed context, provider and strict consumer hook.

reduce

React Reducer Builder

Generate discriminated actions, state and an exhaustive reducer.

Form

React Form Generator

Generate a controlled typed form with submission and validation states.

Vue

Vue Component Generator

Generate a Vue 3 script-setup component with typed props and emits.

use…

Vue Composable Generator

Scaffold a reusable Vue composable with refs, computed state and cleanup.

Pinia

Pinia Store Generator

Create a typed setup store with state, getters and async actions.

v-*

Vue Directive Generator

Generate a typed custom Vue directive with lifecycle cleanup.

route

Vue Router Builder

Generate typed lazy routes, metadata and navigation guards.

PHP

PHP & Laravel

Laravel generators, Eloquent, queues, testing and modern PHP.

44
mig

Database Migration Generator

Turn a simple field list into Laravel migration boilerplate.

git−

.gitignore Generator

Combine practical ignore rules for common languages, editors and systems.

art

Laravel Artisan Builder

Build common make, migrate, queue and maintenance commands with safe options.

GET

Laravel Route Builder

Generate web, API, resource and invokable Laravel route declarations.

val

Laravel Validation Builder

Compose Laravel validation arrays from readable field definitions.

REQ

Laravel Form Request Generator

Create a typed Form Request class with authorization and validation rules.

1:N

Eloquent Relationship Builder

Generate model relationship methods for every common Eloquent relation.

DB?

Eloquent Query Builder

Turn filters, sorting, eager loading and pagination into an Eloquent query.

API

Laravel API Resource Generator

Generate a JSON resource class from a concise list of attributes.

can

Laravel Policy Generator

Create a model policy skeleton with typed user and model methods.

job

Laravel Queue Job Generator

Scaffold a queued job with retries, timeout, backoff and unique handling.

evt

Laravel Event & Listener Generator

Generate a typed event, listener and their matching Artisan commands.

cron

Laravel Scheduler Builder

Build fluent task schedules with frequency, locking and environment controls.

col

Laravel Collection Pipeline

Compose readable map, filter, sort, group and aggregate collection chains.

x-

Laravel Blade Component Generator

Generate a component class, Blade template and usage example together.

MW

Laravel Middleware Generator

Create middleware for roles, headers, tenant checks or request guards.

test

Laravel Feature Test Generator

Scaffold PHPUnit feature tests for pages, JSON endpoints and validation.

60/m

Laravel Rate Limiter Builder

Generate named rate limiters with user, IP and custom segmentation keys.

L↑

Laravel Upgrade Planner

Create an ordered Laravel upgrade checklist and Composer command.

enum

PHP Enum Generator

Generate backed PHP enums with labels, values and helper methods.

DTO

PHP DTO Generator

Turn a concise property list into a typed readonly data-transfer object.

#[]

PHP Attribute Builder

Create reusable PHP attributes with targets, repeatability and arguments.

s:

PHP Serialize Inspector

Decode and inspect common PHP serialized strings without executing PHP code.

cmp

Composer Script Builder

Build Composer scripts for tests, formatting, analysis and deployment.

PHP✓

PHPStan Config Builder

Generate a practical PHPStan or Larastan configuration for a project.

cast

Eloquent Cast Builder

Generate a model casts method for dates, enums, JSON and encrypted values.

fake

Laravel Factory Generator

Create realistic model factory definitions and useful named states.

bell

Laravel Notification Generator

Scaffold queued mail and database notifications with typed payloads.

mail

Laravel Mailable Generator

Generate a modern Laravel mailable with envelope, content and attachments.

bind

Laravel Service Provider Builder

Generate bindings, singletons and boot hooks for a service provider.

$cmd

Laravel Console Command Generator

Create a typed Artisan command with arguments, options and exit handling.

A↔

Eloquent Accessor & Mutator Builder

Generate modern Attribute objects for computed and normalized model values.

scope

Eloquent Scope Builder

Create reusable local and dynamic query scopes with modern attributes.

obs

Laravel Observer Generator

Scaffold model lifecycle observers with after-commit guidance.

ex!

Laravel Exception Generator

Generate domain exceptions with HTTP rendering and reporting controls.

live

Laravel Broadcast Event Builder

Generate broadcastable events with channels, aliases and payloads.

token

Laravel Sanctum Token Builder

Generate personal-access token issuance, abilities and route protection.

cache

Laravel Cache Strategy Builder

Generate remember, flexible, locking and tag-based cache patterns.

disk

Laravel Storage Builder

Generate disk operations, uploads, temporary URLs and streamed downloads.

1…n

Laravel Pagination Builder

Generate cursor, simple or numbered pagination with API metadata.

IoC

Laravel Container Debug Helper

Generate checks for bindings, resolutions, contextual injection and tags.

date

Laravel Carbon Date Builder

Compose readable Carbon parsing, timezone and date arithmetic chains.

pest

Pest Test Generator

Create concise Pest feature tests with datasets, fakes and assertions.

D−

.dockerignore Generator

Generate a lean build context for common application stacks.

WP

WordPress

Plugins, blocks, themes, REST, WP-CLI and site operations.

21
WP+

WordPress Plugin Generator

Scaffold a namespaced plugin entry file with activation and uninstall safety.

hook

WordPress Hook Builder

Generate actions, filters, callbacks, priorities and accepted arguments.

[sc]

WordPress Shortcode Generator

Create an escaped shortcode with documented attributes and buffered markup.

CPT

WordPress Post Type Generator

Generate a REST-enabled custom post type with labels and capabilities.

tax

WordPress Taxonomy Generator

Generate hierarchical or tag-style taxonomies with REST support.

opts

WordPress Settings Page Generator

Create a Settings API page with capability checks and sanitization.

meta

WordPress Meta Box Generator

Generate nonce-protected metadata editing and safe save handling.

REST

WordPress REST Route Generator

Generate a schema-aware REST endpoint with validation and permissions.

WP?

WordPress Query Builder

Build WP_Query arguments for post types, taxonomies, metadata and pagination.

cron

WordPress Cron Generator

Create idempotent scheduling, callbacks and deactivation cleanup.

wp$

WP-CLI Command Generator

Generate a documented WP-CLI command with arguments and progress output.

{}

WordPress block.json Generator

Build modern block metadata with attributes, supports and script modules.

block

WordPress Dynamic Block Generator

Generate block registration and secure server-side rendering.

theme

WordPress theme.json Generator

Create Global Styles settings for colour, typography, layout and spacing.

pat

WordPress Block Pattern Generator

Generate a registered pattern with categories and translatable metadata.

asset

WordPress Asset Enqueue Builder

Generate versioned scripts and styles with dependencies and module support.

WP✓

WordPress Security Guard Builder

Compose nonce, capability, validation, sanitization and escaping checks.

cache

WordPress Cache & Transient Builder

Generate object-cache and transient patterns with invalidation hooks.

URL

WordPress Rewrite Rule Builder

Generate rewrite tags, rules, query vars and safe activation flushing.

DB+

WordPress Database Table Generator

Generate a dbDelta-compatible custom table schema and installer.

can

WordPress Ability Generator

Generate a modern registered WordPress ability with permissions and schema.

DB

Databases & SQL

Queries, schemas, indexes, backups, migrations and permissions.

13
K8s

Docker & Kubernetes

Containers, manifests, health checks and cluster operations.

12
SSH

Linux, SSH & Servers

Remote access, services, logs, files, processes and firewalls.

11
SEC

Security & Networking

Keys, hashes, tokens, DNS, IP addressing and security headers.

35
***

Password Generator

Strong random passwords with entropy estimates. Generated locally.

#!

Hash Generator

SHA-1, SHA-256, SHA-384 and SHA-512 digests, computed in your browser.

◎

Connection Trace

What Cloudflare sees: your IP, colo, TLS version and user agent.

pwn

Password Breach Check

See if a password appears in known breaches. Only a hash prefix is sent.

CVE

CVE Lookup

Search the National Vulnerability Database by keyword or CVE id.

jwt

JWT Decoder

Decode JWT headers and payloads, with expiry checks. Fully offline.

dig

DNS Lookup

Query A, MX, TXT, NS and more for any domain, straight from your browser.

://

URL Parser

Break any URL into protocol, host, path, query params and hash.

⌖

IP Address Lookup

See your public IP, or look up where any address lives.

@

Email Checker

Format, disposable, DNS and free-provider checks for any address.

₿

Crypto Prices

Live prices and 24h moves for the top cryptocurrencies.

Au

Basic Auth Generator

Build an HTTP Basic Authorization header from a username and password.

b$

Bcrypt Hash & Verify

Create and verify secure bcrypt password hashes.

🔒

Text Encryption

Encrypt and decrypt text with AES-GCM in your browser.

HM

HMAC Generator

Sign text with HMAC SHA-256, SHA-384 or SHA-512.

IB

IBAN Validator

Validate IBAN structure and checksum and inspect its components.

IP4

IPv4 Address Converter

Convert IPv4 addresses between dotted, integer, hex and binary forms.

↔

IPv4 Range Expander

Expand an IPv4 start/end range or CIDR into individual addresses.

/24

IPv4 Subnet Calculator

Calculate network, broadcast, host range and mask from CIDR.

IP6

IPv6 ULA Generator

Generate a random RFC 4193-style private IPv6 prefix.

MAC

MAC Address Generator

Generate random unicast MAC addresses with optional prefixes.

OUI

MAC Address Lookup

Normalize a MAC address and identify its OUI vendor online.

***

Password Strength Analyser

Estimate password entropy, crack time and common weaknesses locally.

:#

Random Port Generator

Pick random registered or dynamic TCP/UDP ports.

RSA

RSA Key Pair Generator

Generate exportable RSA public and private keys locally.

WiFi

Wi-Fi QR Generator

Build a Wi-Fi connection payload and scannable QR code.

CSP

Content Security Policy Builder

Create a practical CSP header from common source directives.

L10

Luhn Number Validator

Validate check-digit numbers and calculate a missing Luhn digit.

RDAP

Domain & IP RDAP Lookup

Inspect registration, entities, nameservers and status using RDAP.

MX

Email DNS Checker

Inspect SPF, DMARC and MX records for an email domain.

DKIM

DKIM Record Checker

Find and inspect a DKIM public-key record by domain and selector.

DNS✓

DNSSEC Checker

Check whether a domain returns authenticated DNSSEC answers.

hdr

Email Header Analyser

Read delivery hops, authentication results and common message headers.

∩

CIDR Overlap Checker

Compare IPv4 networks and identify containment or overlap.

JWT+

JWT Sign & Verify

Create and verify HS256 JSON Web Tokens entirely in your browser.

DEV

Developer Core

APIs, source control, configuration and everyday engineering helpers.

34
/.*/

Regex Tester

Test regular expressions with live match highlighting and groups.

⇄

HTTP Request Echo

Send a request and see headers, args and body echoed back. Mini Postman.

VAT

VAT Number Validator

Check an EU VAT number and pull the registered company name.

Σ

LaTeX Renderer

Turn LaTeX into a crisp SVG equation you can embed or download.

ƒx

Newton Math

Simplify, derive, integrate and factor expressions via Newton.

Aあ

Translator

Translate text between languages, with optional autodetection.

url

URL Shortener

Shrink a long link into a short shareable URL.

{}

Fake Data API

Browse DummyJSON products, users, posts and quotes for prototypes.

av

Avatar Maker

Deterministic cartoon avatars from any seed, via DiceBear.

⏱

Timestamp Converter

Convert Unix timestamps to human dates and back again.

418

HTTP Status Codes

Every status code from 100 to 511, searchable and explained.

gh

GitHub User Lookup

Profile, stats and top repositories for any GitHub user or org.

cron

Cron Expression Builder

Build or decode a cron schedule and see the next run times.

TZ

Timezone Converter

See the same moment across cities. Great for scheduling across zones.

⌨

Keyboard Key Codes

Press any key to see key, code, keyCode and modifiers. Handy for shortcuts.

ms

HTTP Benchmark Builder

Build ready-to-run hey, ab and wrk benchmark commands.

00

Chronometer

A precise stopwatch with laps and keyboard-friendly controls.

i

Device Information

Inspect browser, screen, language, CPU and connection details.

ETA

ETA Calculator

Estimate completion time from progress, elapsed time and total work.

git

Git Cheatsheet

Searchable everyday Git commands with copy buttons.

OTP

OTP Code Generator

Generate and validate time-based one-time passwords from a Base32 secret.

.*

Regex Cheatsheet

A searchable reference for groups, classes, anchors and quantifiers.

UA

User-Agent Parser

Parse browser, engine, operating system and device hints.

?=

URL Query Builder

Build, edit and sort URL query parameters without encoding mistakes.

curl

cURL Command Builder

Compose a safe, copyable cURL request with method, headers and body.

max

Cache-Control Builder

Build HTTP caching headers and understand their effective policy.

zip

Compression Size Estimator

Compare raw, gzip and deflate sizes for text or code.

UUID?

UUID Inspector

Validate UUIDs and inspect their version, variant and embedded timestamp.

.env

.env Comparator

Compare environment files without exposing values in the report.

xn--

IDN / Punycode Converter

Convert international domain names to safe ASCII/Punycode form and inspect their URL.

EC

EditorConfig Generator

Build a consistent .editorconfig for mixed-language projects.

©

Open-Source Licence Chooser

Compare popular open-source licences and generate a project-ready LICENSE file.

geo#

Geohash Encoder / Decoder

Encode coordinates as a geohash or decode a geohash bounding box.

0,1,0

CSS Specificity Calculator

Calculate and compare selector specificity without sending code anywhere.

GEN

General Generators

Identifiers, sample data, documents and reusable assets.

17
id

UUID Generator

Generate v4 and v7 UUIDs, one at a time or in bulk.

Lorem Ipsum

Placeholder text by the word, sentence or paragraph.

▩

QR Code Generator

Turn any text or URL into a downloadable QR code.

☺

Fake User Generator

Realistic fake people with names, emails and avatars for test data.

12w

Mnemonic Phrase Generator

Generate a strong random 12 or 24-word mnemonic for test and recovery workflows.

tok

Secure Token Generator

Generate cryptographically secure hex, Base64URL or alphanumeric tokens.

ULID

ULID Generator

Generate sortable, timestamped Universally Unique Lexicographically Sortable IDs.

❄

Snowflake ID Tool

Generate and decode timestamped 64-bit Snowflake-style IDs.

nano

Nano ID Generator

Generate compact, URL-safe identifiers with configurable length.

ICS

Calendar Event Generator

Create a downloadable ICS calendar event with time, location and notes.

↻

Recurrence Rule Builder

Create RFC 5545 RRULE strings for repeating calendar events.

inv

Invoice & Quote Generator

Calculate line items and create a clean printable invoice or quotation.

struct

Go Struct & JSON Generator

Generate idiomatic Go structs with JSON tags from field definitions.

http

Go HTTP Handler Generator

Create a standard-library JSON handler with validation and errors.

go$

Go CLI Flag Builder

Generate a small dependency-free command-line program using flag.

go✓

Go Table Test Generator

Generate idiomatic table-driven tests with subtests and comparisons.

go×N

Go Worker Pool Generator

Create a cancellable worker pool with channels, context and WaitGroup.

LIVE

Live Lookups

Fresh public information from useful free data services.

29
Aa

Dictionary Lookup

Definitions, phonetics and synonyms for any English word.

☀

Weather Lookup

Current conditions and a five day forecast for any city on Earth.

⚑

Country Lookup

Flags, capitals, populations, currencies and languages for every country.

¤

Currency Converter

Convert between 30+ currencies using daily central bank rates.

⌂

Postcode Lookup

Find the places behind any zip or postal code in a dozen countries.

✉

Temp Email Inbox

Spin up a throwaway inbox, then read mail that lands there.

AI

AI Dev Jobs

Browse AI and ML engineering roles with salary, remote and tag filters.

lat

Geocoder

Turn a place name into coordinates, or coordinates into an address.

△

Elevation Lookup

Ground elevation (or ocean depth nearby) for any latitude and longitude.

≈

Earthquake Feed

Recent earthquakes worldwide from the USGS real-time feed.

☀

Sunrise & Sunset

Sunrise, sunset and day length for any coordinates on Earth.

▲

Upcoming Launches

Next rocket launches from Launch Library 2 / The Space Devs.

F1

F1 Results

Latest Formula 1 race results and the next race on the calendar.

ex

Exercise Finder

Browse workout exercises with muscles and how-to steps from wger.

TV

TV Show Search

Find shows on TVMaze with ratings, genres and episode counts.

doi

Research Paper Search

Search scholarly works on OpenAlex by title, topic or author.

kcal

Calorie & Macro Calculator

Daily calories, protein, fat, carbs and fiber from your body weight.

🍳

Recipe Finder

Search thousands of recipes with photos, ingredients and instructions.

🍸

Cocktail Finder

Look up any cocktail: ingredients, measures and how to mix it.

📖

Book Search

Search millions of books by title or author, with covers and first editions.

MIME

MIME Type Lookup

Search common MIME types by extension, media type or description.

cal

Worldwide Public Holidays

Look up public holidays by country and year for over 100 countries.

UK

UK Bank Holidays

See upcoming official bank holidays for every UK nation.

AQI

Air Quality & Pollen

Check current air quality, pollutants, UV and pollen by coordinates.

SO

Stack Overflow Search

Search programming questions and surface answered, high-signal results.

UK↔

UK Postcode Distance

Calculate straight-line distance and locations between two UK postcodes.

✦

Stargazing Forecast

Check cloud, visibility, humidity and moon conditions for observing.

flood

England Flood Warnings

See current Environment Agency flood warnings by place or postcode.

food

Food Barcode Lookup

Look up ingredients, allergens and nutrition using a product barcode.

FUN

Fun & Curiosities

Playful tools, trivia, space, culture and delightful distractions.

15