# Jam Dev Utilities

> Free, open-source, and ad-free client-side developer utility tools

Jam Dev Utilities is a curated suite of free, open-source web tools created by the Jam team for everyday programming tasks. It covers data formatting, conversions, encoding, and debugging without the clutter or privacy concerns of ad-heavy converter sites. Everything runs quickly in the browser, keeping sensitive strings and payloads on your local machine.

Website: https://jam.dev/utilities

## What it is for

- Convert between data formats like CSV, TSV, YAML, XML, and JSON
- Encode or decode Base64 strings, images, and URL components
- Parse and inspect JSON Web Tokens (JWT) or HAR network logs
- Convert Unix timestamps to human-readable dates
- Generate secure hashes, random UUIDs, or passwords directly in the browser

## Features

- Ad-free and open-source browser interface
- Fast command palette search (CMD + K)
- Comprehensive JSON tools including formatters, validators, and converters
- Security utilities like JWT parser, hash generator, and file integrity checkers
- Web design helpers including HEX to RGB, CSS unit converters, and WCAG contrast checker
- Image tools including WebP conversion, resizing, and Base64 encoding/decoding
- Client-side processing to ensure data privacy

## Pricing

Free and open source

## Details

- Type: Web app
- Category: [Development](https://xiry.app/topics/development.md)
- Open source: yes
- Platforms: Web
- For: Software developers, QA engineers, and web designers looking for quick, ad-free utilities.
- Alternative to: CyberChef, DevToys, Transform Tools
- Tags: developer tools, converters, formatters, json, utilities, open source

## Why it was saved

- [@jamdotdev, 15 August 2024](https://www.instagram.com/reel/C-sZ9PBp2bz/): Replaces ad-heavy, clunky developer utility sites with fast, clean, private client-side converters that keep data on your device.

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Updated 3 October 2026. Page: https://xiry.app/resources/jam-dev-utilities

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