# Free Developer Tools | Ibrahim Tools

> Format, encode, hash, and debug without a server. Explore working tools, examples, and linked guides. No signup required.

Canonical: https://tools.ibrahimwali.com/category/developer
Author: [Muhammad Ibrahim](https://ibrahimwali.com)

## Tools

- [JSON Formatter](https://tools.ibrahimwali.com/json-formatter): Format, minify, and validate JSON with readable errors.
- [Base64 Encoder & Decoder](https://tools.ibrahimwali.com/base64-encoder-decoder): Encode Unicode text as Base64 or decode it back to text.
- [URL Encoder & Decoder](https://tools.ibrahimwali.com/url-encoder-decoder): Encode a query parameter or decode percent-escaped text.
- [UUID Generator](https://tools.ibrahimwali.com/uuid-generator): Generate version 4 UUIDs using your browser’s cryptographic random source.
- [SHA-256 Hash Generator](https://tools.ibrahimwali.com/sha256-generator): Calculate a SHA-256 digest for UTF-8 text locally.
- [Unix Timestamp Converter](https://tools.ibrahimwali.com/timestamp-converter): Convert Unix seconds or milliseconds into UTC dates and back.
- [CSV to JSON Converter](https://tools.ibrahimwali.com/csv-to-json): Convert comma-separated records into a structured JSON array.
- [JSON to CSV Converter](https://tools.ibrahimwali.com/json-to-csv): Turn an array of JSON objects into a downloadable CSV file.
- [HTML Entity Encoder & Decoder](https://tools.ibrahimwali.com/html-entity-encoder-decoder): Escape HTML-sensitive text and decode common or numeric entities.
- [HEX / RGB / HSL Color Converter](https://tools.ibrahimwali.com/color-converter): Convert a solid HEX or RGB color into HEX, RGB, and HSL values.
- [Color Contrast Checker](https://tools.ibrahimwali.com/contrast-checker): Check foreground/background contrast against WCAG 2.x AA and AAA thresholds.