A collection of developer tools

index.ph is a library of free, mostly open source, ad-free developer tools.
Let us know if you wish to see more tools.

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SQL to CSV

Easily convert SQL data to CSV format with our free tool. Quickest way to turn tabular data into a CSV format for better readability.

CSV to JSON

Easily convert CSV data to JSON format with our free tool. Quickest way to turn tabular data into a JSON format for APIs and data processing.

Base64 Encode/Decode

Easily encode and decode Base64 data with our online utility, so you can transmit your data safely or decode Base64-encoded strings.

JSON Formatter

Format and beautify your JSON data for better readability and debugging. Quickly visualize and organize your JSON data with ease.

YAML to JSON

Easily convert YAML to JSON with our converter. Useful when you're working with configuration files and need to switch between them.

URL Encode/Decode

Convert URLs to a safe format with URL encoding or decode URL-encoded strings back to their original format.

Timestamp to Date Converter

Paste Unix timestamps and get a human readable dates. Perfect for developers working with time-based data.

Query Parameters to JSON

Convert URL query parameters into a structured JSON object, simplifying the process of parsing and manipulating URL data in web applications.

HEX to RGB Converter

Convert HEX to RGB and generate CSS snippets for web, Swift, and Android with our easy-to-use color converter.

Convert .env to netlify.toml

This free tool allows you to quickly and easily convert your .env file variables into the format needed for your netlify.toml file.

Image to Base64 Converter

Instantly convert images to Base64 strings. Embed images directly in your code. Fast, free, and developer-friendly.

JSON to CSV

Transform your JSON data into sleek CSV format with index.ph's free online converter. Simply paste your JSON and watch the magic happen!

HAR file viewer

Easily view and analyze HAR files online for free. Debug web traffic and network performance. Open source & ad-free.

JSON to YAML

Easily convert JSON to YAML with our converter. Perfect for when you're juggling configuration files and need a switch between formats.

Number Base Changer

Easily convert numbers between different bases (binary, octal, decimal, hexadecimal) with our free online Number Base Changer.

CSS Inliner for Email

Easily convert your CSS styles to inline styles directly in your HTML. Perfect for improving email compatibility and reducing external stylesheet dependencies.

Regex Tester

Test and debug your regular expressions in real-time. Provides quick feedback on pattern matching for strings.

CSS Units Converter

Easily convert px to rem with our simple CSS unit converter. Quickly transform pixel values to rem units for better scalability and accessibility.

Image Resizer

Resize images while maintaining aspect ratio and choose between PNG and JPEG formats with our free tool.

JWT Parser

Easily decode JWT tokens and view their header, payload, and signature. Perfect for debugging and analyzing JSON Web Tokens.

Hash Generator

Quickly generate secure hashes for your text using algorithms like SHA-256, SHA-512, MD5, and more. Ideal for password hashing, data integrity checks, and cryptographic applications.

WhatsApp Link Shortener

Shorten your WhatsApp links with our free tool. Make sharing easy and convenient with a custom URL.

SSL Checker

Check the SSL certificate of a website.