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Dev Utilities

20 cards
Jam exists to make developers lives easier. Here are fast, free, open source, ad-free tools.
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CSV to JSON Converter

Just paste your CSV file and get the JSON result. Built with 💜 by the developers at Jam.

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Base64 Encoder/Decoder

This tool is perfect for decoding API responses. No need to sign up — just paste your data and convert instantly.

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JSON formatter

Just paste your minified JSON and get the formatted result. Made with 💜 by the developers building Jam.

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YAML to JSON

Convert configuration files or integrate YAML data into web apps and APIs with just a few clicks.

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URL encoder/decoder

You can encode and decode URLs online with this free tool, ensuring proper treatment of special characters, spaces, and non-ASCII symbols in web addresses and query strings.

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Timestamp to Date Converter

You can easily convert Unix timestamps into human-readable dates with this free tool.

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Query Params to JSON Converter

If you work with web applications, APIs, or data manipulation, you can use this Query Params to JSON converter to transform query strings into structured JSON objects.

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HEX to RGB converter

Easily convert HEX CSS/HTML color codes to RGB. Whether you're working with CSS, Objective-C, Swift, or Android, Jam's free color code converter has you covered.

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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

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Image to Base64 Converter

Jam's free tool to convert images to Data URI comes in handy when you need to reduce HTTP requests.

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HAR File Viewer

Use our free HAR file viewer to instantly upload and inspect your HAR (HTTP Archive) files online.

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JSON to YAML

This free tool quickly converts JSON to YAML. Ideal for configuration files, data, or web apps. Just paste your JSON data and get the YAML result.

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Number Base Changer

This tool helps developers easily change number base to decimal, binary, hexadecimal, or more complex operations.

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CSS Inliner for Email

Convert your CSS to inline styles quickly and easily.

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Regex Tester

Fast, free, open source, ad-free tools.

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CSS Units Converter

Fast, free, open source, ad-free tools.

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Image Resizer

Fast, free, open source, ad-free tools.

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JWT Parser

Fast, free, ope-source, ad-free tools!

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Hash Generator

Fast, free, open source, ad-free tools.

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JSON to CSV Converter

Fast, free, open source, ad-free tools.