100% Client-Side Web Utilities

Free Developer Tools Online

Format JSON strings, validate schemas, generate vector QR codes, and convert color values.

Available Tools

Select one of the free utility tools below to process your data directly in your browser.

JSON Formatter & Validator

Prettify, validate, minify, and fix JSON syntax errors instantly.

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QR Code Generator

Create custom high-resolution QR codes instantly. Customize size, colors, and error correction levels.

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Password Generator

Generate strong, secure passwords instantly with customized options and cryptographically secure randomness.

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Base64 Encoder & Decoder

Encode text and files to Base64 strings or decode Base64 data back to raw formats offline.

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URL Encoder & Decoder

Encode special characters in URLs to safe web percent-encoding, or decode them back to plain text.

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Color Picker

Select colors visually and convert between HEX, RGB, and HSL formats instantly.

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Regex Tester

Test regular expressions in real-time with live matching, flag configurations, and capture groups.

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Markdown to HTML Converter

Convert Markdown strings into standard formatted HTML code and preview it instantly in real-time.

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HTML Minifier

Compress raw HTML code by stripping comments, spaces, and linebreaks for faster web performance.

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About EverTools Developer Tools

Developer tools are digital utilities designed to format code, generate assets, and convert data structures to speed up software engineering tasks. EverTools hosts a selection of free developer utilities, including a JSON formatter and validator, alongside a customizable QR code generator. These utilities run entirely client-side, ensuring that proprietary source code, API payloads, and config values remain private and are not logged on remote servers. Formatting data structures is essential for troubleshooting and code readability. A JSON formatter parses raw strings, validates syntax structure, and outputs a formatted, color-coded structure that highlights key-value pairs. QR code generators encode web URLs, Wi-Fi keys, and text strings into scan-ready vector codes. Using these local tools prevents performance lag and avoids security risks associated with sharing credentials or raw database outputs. EverTools developer utilities provide programmers, systems administrators, and designers with reliable helper modules. Validate data payloads, debug structure errors, and generate assets directly in your development browser tab.