Dev Utilities

Jam exists to make developers lives easier.

Here are fast, free, open source, ad-free tools.

CMD + K

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.
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TSV to JSON
Transform tab-separated values into structured JSON. Ideal for spreadsheet exports, database dumps, and scientific datasets with no delimiter conflicts.
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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.
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JSON Formatter
Format and beautify your JSON data for better readability and debugging. Quickly visualize and organize your JSON data with ease.
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Unserializer
Parse serialized strings and render readable output in print_r() or var_dump() format. Useful for debugging WordPress database values.
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JSONL Validator
Validate JSON Lines instantly, find broken rows by line number, and convert valid records to a clean JSON array.
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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.
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URL Encode/Decode
Convert URLs to a safe format with URL encoding or decode URL-encoded strings back to their original format.
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Timestamp to Date Converter
Paste Unix timestamps and get a human readable dates. Perfect for developers working with time-based data.
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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.
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HEX to RGB Converter
Convert HEX to RGB and generate CSS snippets for web, Swift, and Android with our easy-to-use color converter.
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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
Instantly convert images to Base64 strings. Embed images directly in your code. Fast, free, and developer-friendly.
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Base64 to Image Converter
Convert Base64 strings to images instantly. Preview Base64-encoded image data in your browser. Fast, free, and developer-friendly.
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JSON to CSV
Transform your JSON data into sleek CSV format with Jam's free online converter. Simply paste your JSON and watch the magic happen!
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JSON to TSV
Transform your JSON data into TSV format with Jam's free online converter. Simply paste your JSON and get tab-separated output instantly.
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HAR file viewer
Easily view and analyze HAR files online for free. Debug web traffic and network performance. Open source & ad-free.
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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.
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Number Base Changer
Easily convert numbers between different bases (binary, octal, decimal, hexadecimal) with our free online Number Base Changer.
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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.
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Regex Tester
Test and debug your regular expressions in real-time. Provides quick feedback on pattern matching for strings.
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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.
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Image Resizer
Resize images while maintaining aspect ratio and choose between PNG and JPEG formats with our free tool.
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JWT Parser
Easily decode JWT tokens and view their header, payload, and signature. Perfect for debugging and analyzing JSON Web Tokens.
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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.
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UUID Generator
Generate random UUIDs. Useful for creating unique identifiers for various applications such as database keys, session IDs, and more.
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SVG Viewer
Instantly preview and validate SVG code in your browser. Perfect for developers working with vector graphics and debugging SVG markup.
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Lorem Ipsum Generator
Easily generate random Lorem Ipsum text for your design projects. Perfect for placeholder content and layout previews.
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WebP Converter
Convert images to WebP format with batch processing and quality control. Reduce file sizes while maintaining image quality.
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SQL Minifier
Minify SQL by removing comments, extra spaces, and formatting for cleaner, optimized queries.
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Internet Speed Test
Test your internet connection speed with accurate measurements by using Cloudflare's global network.
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Random String Generator
Generate cryptographically secure random strings with configurable character sets. Perfect for API keys, tokens, passwords, and secure identifiers.
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WCAG Color Contrast Checker
Check color contrast ratios for WCAG AA and AAA compliance. Ensure your designs meet accessibility standards with our free color contrast checker tool.
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XML to JSON
Transform XML data into JSON format instantly. Simplifies working with APIs and modern web applications that prefer JSON.
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CSV file viewer (.csv, .tsv, .log)
View, search, and filter CSV, TSV or LOG files with color-coded severity levels. Quickly scan through logs with Datadog-inspired faceted filtering.
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