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12 categories · 780 tools · privacy-first

Browse all categories

Tools grouped by purpose so you find what you need in one click. Every tool runs locally in your browser — paste, transform, copy, gone.

12
categories
780
total tools
41
most popular
Categories Explorerlive · 12 categories indexed
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{ }
/json
JSON

Parse, format, validate and convert JSON — the lingua franca of APIs.

23 tools6 popular
— Includes —23 total
├─JSON Formatter
├─JSON Validator
├─JSON Minifier
├─JSON to CSV
├─CSV to JSON
└─ +18 more →
Aa
/text
Text

Manipulate, transform, count and clean any text.

54 tools2 popular
— Includes —54 total
├─Word Counter
├─Character Counter
├─Case Converter
├─Uppercase Converter
├─Lowercase Converter
└─ +49 more →
M↓
/markdown
Markdown

Preview, convert and format Markdown for docs and READMEs.

94 tools4 popular
— Includes —94 total
├─Markdown Editor & Preview
├─Markdown to HTML
├─HTML to Markdown
├─Markdown Table Generator
├─CSV to Markdown Table
└─ +89 more →
01
/encoding
Encoding

Base64, URL, HTML, JWT, hash — encode and decode everything.

84 tools10 popular
— Includes —84 total
├─Base64 Encoder
├─Base64 Decoder
├─Image to Base64
├─Base64 to Image
├─URL Encoder
└─ +79 more →
⇄
/converters
Converters

CSV, XML, TOML — move between data formats losslessly.

59 tools1 popular
— Includes —59 total
├─XML to JSON
├─TOML to JSON
├─SQL Insert to JSON
├─cURL to fetch()
├─cURL to Code
└─ +54 more →
{ }
/formatters
Formatters

Pretty-print and minify HTML, CSS, JS, SQL, XML.

52 tools
— Includes —52 total
├─HTML Formatter
├─CSS Formatter
├─JavaScript Formatter
├─TypeScript Formatter
├─SQL Formatter
└─ +47 more →
</>
/web
Web

HTTP status codes, MIME types, headers, User-Agent parser.

49 tools3 popular
— Includes —49 total
├─HTTP Status Codes
├─MIME Type Lookup
├─User-Agent Parser
├─URL Parser
├─IP Address Info
└─ +44 more →
◐
/color
Color

Convert colors, build palettes, check contrast.

43 tools2 popular
— Includes —43 total
├─Color Picker
├─Color Converter
├─Contrast Checker
├─Color Palette Generator
├─CSS Gradient Generator
└─ +38 more →
⏱
/time
Time & Date

Timestamps, timezones, cron, durations.

39 tools1 popular
— Includes —39 total
├─Unix Timestamp Converter
├─Timezone Converter
├─Cron Expression Parser
├─Cron Builder
├─Duration Calculator
└─ +34 more →
▣
/images
Images

Convert, resize, compress, edit and inspect — every image task, locally.

81 tools5 popular
— Includes —81 total
├─PNG to JPG
├─JPG to PNG
├─PNG to WebP
├─JPG to WebP
├─WebP to PNG
└─ +76 more →
/./
/regex
Regex

Test, build, explain, convert and benchmark regular expressions.

82 tools7 popular
— Includes —82 total
├─Regex Tester
├─Regex Debugger
├─Regex Explainer
├─Regex Visualizer
├─Regex Tree Viewer
└─ +77 more →
⌘
/utilities
Utilities

Random, IDs, mock data, calculators, references and browser debug — the kitchen sink.

120 tools
— Includes —120 total
├─Password Generator
├─Random Number Generator
├─Random Picker
├─Diff Checker
├─Placeholder Image Generator
└─ +115 more →
12 categories·780 tools
indexed locally · 0ms network · UTF-8
Most popular

The tools developers reach for

A curated set of the most-used utilities across all categories.

/json
JSON Formatter

Pretty-print, validate and minify JSON with syntax highlighting.

live demoopen ↗
/json
JSON to CSV

Convert arrays of objects into clean, downloadable CSV.

live demoopen ↗
/json
JSON to TypeScript

Generate TypeScript interfaces from any JSON sample.

live demoopen ↗
/json
JSON to Zod Schema

Generate Zod validation schemas from any JSON sample.

live demoopen ↗
/json
JSON to Pydantic

Generate Pydantic v2 models from any JSON sample.

live demoopen ↗
/json
JSON Repair

Fix broken, malformed or LLM-generated JSON automatically.

live demoopen ↗
/text
Case Converter

Convert between camelCase, snake_case, PascalCase, kebab-case.

live demoopen ↗
/text
Text Diff Checker

Compare two texts side-by-side with character-level diff.

live demoopen ↗