32 free tools, no signup required

All Developer Tools

Browse our complete collection of free, browser-based developer tools. Everything runs client-side — your data never leaves your device.

246K/mo

JSON Formatter & Beautifier

Format and beautify JSON with proper indentation and syntax highlighting.

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90K/mo

JSON Validator

Validate JSON syntax with detailed error messages and line numbers.

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60K/mo

JSON Minifier

Compress JSON by removing whitespace and unnecessary characters.

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45K/mo

JSON to CSV Converter

Convert JSON arrays to CSV format for spreadsheet import.

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30K/mo

JSON to XML Converter

Transform JSON data into XML format with proper element nesting.

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25K/mo

JSON to YAML Converter

Convert JSON to human-readable YAML format.

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201K/mo

XML Formatter

Format and beautify XML with proper indentation and structure.

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135K/mo

HTML Formatter & Minifier

Format or minify HTML with proper indentation or compression.

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90K/mo

CSS Formatter & Minifier

Format or minify CSS stylesheets for cleaner or compressed output.

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80K/mo

JavaScript Minifier & Beautifier

Minify or beautify JavaScript code with configurable options.

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450K/mo

Base64 Encode / Decode

Encode text to Base64 or decode Base64 strings back to text.

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90K/mo

JWT Decoder

Decode JSON Web Tokens and inspect header and payload.

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246K/mo

Regex Tester

Test regular expressions with real-time matching and highlighting.

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120K/mo

URL Encode / Decode

Percent-encode or decode URLs and query parameters.

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70K/mo

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text.

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135K/mo

UUID Generator

Generate random UUIDs (v4) in bulk with one click.

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246K/mo

Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa.

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50K/mo

HTML Encoder / Decoder

Encode or decode HTML entities for safe display in web pages.

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40K/mo

YAML Formatter & Validator

Format, validate, and convert YAML with error reporting.

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30K/mo

IDE Shortcut Reference

Compare keyboard shortcuts across VS Code, IntelliJ, Vim, and more.

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120K/mo

Cron Expression Generator

Build and validate cron expressions with a visual schedule builder.

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350K/mo

SQL Formatter & Beautifier

Format and beautify SQL queries with proper indentation and keyword highlighting.

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200K/mo

JSON Diff

Compare two JSON objects side-by-side and highlight every difference.

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200K/mo

Number Base Converter

Convert numbers between binary, decimal, hexadecimal, and octal formats.

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200K/mo

HTTP Status Code Reference

Quick reference for all HTTP status codes with descriptions and usage examples.

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150K/mo

Bcrypt Hash Generator

Generate bcrypt password hashes with configurable cost factors for secure storage.

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300K/mo

Markdown to HTML Converter

Convert Markdown text to clean HTML with live preview and syntax highlighting.

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90K/mo

cURL to Code Converter

Convert cURL commands to JavaScript, Python, Go, PHP, and other languages.

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80K/mo

JSON to TypeScript

Generate TypeScript interfaces and types from JSON objects instantly.

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15K/mo

Large JSON Handler

Process and view large JSON files (100MB+) without freezing the browser using Web Workers.

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40K/mo

API Tester

Make HTTP requests, test REST endpoints, and view responses with this lightweight API testing tool.

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20K/mo

Mock Data Generator

Generate realistic mock data in JSON, CSV, and SQL formats for testing and development.

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100% Private

All processing happens in your browser. Your data is never uploaded to any server.

Instant Results

No server round-trips. Tools execute instantly on your machine with zero latency.

No Signup

Just open and use. No accounts, no email verification, no tracking. Ever.

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All Developer Tools

JSON Formatter & Beautifier

JSON Validator

JSON Minifier

JSON to CSV Converter

JSON to XML Converter

JSON to YAML Converter

XML Formatter

HTML Formatter & Minifier

CSS Formatter & Minifier

JavaScript Minifier & Beautifier

Base64 Encode / Decode

JWT Decoder

Regex Tester

URL Encode / Decode

Hash Generator

UUID Generator

Timestamp Converter

HTML Encoder / Decoder

YAML Formatter & Validator

IDE Shortcut Reference

Cron Expression Generator

SQL Formatter & Beautifier

JSON Diff

Number Base Converter

HTTP Status Code Reference

Bcrypt Hash Generator

Markdown to HTML Converter

cURL to Code Converter

JSON to TypeScript

Large JSON Handler

API Tester

Mock Data Generator

No tools found

100% Private

Instant Results

No Signup

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