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Developer Tools Tools

Format, validate, parse, and convert JSON, XML, YAML and more. Explore 12 free online utility tools.

Total Tools
12
Speed
Instant
Privacy
100% Local
100% Private Client-Side Engine No Signup Needed

Developer Tools Toolbox

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Color Picker

Pick, convert, preview, copy, and generate color palettes in HEX, RGB, RGBA, HSL, HSV/HSB, and CMYK formats instantly.

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JSON Formatter

Beautify, format, minify, and compact JSON strings. Clean data structures, inspect objects with an interactive tree view, and download formatted JSON files.

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JSON to CSV Converter

Convert JSON data into clean CSV tables instantly. Supports nested object flattening, delimiter options, header mapping/reordering, and visual table grid previews.

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JSON Validator

Validate JSON data against RFC 8259 standards. Detect trailing commas, duplicate keys, mismatched brackets, and run visual diff comparisons.

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CSV to JSON Converter

Convert CSV text or files into formatted JSON structures instantly. Supports custom delimiters, auto-detect, primitive type parsing, header rows, and array/object layout formats.

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SQL Formatter

Beautify, format, and indent raw SQL queries instantly. Adjust keyword casing, set indentations, parse SELECT, JOIN, subqueries, and minify SQL strings locally.

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CSS Minifier

Minify, compress, and optimize your CSS stylesheets. Remove comments, spaces, and optimize colors/units to improve page load speed.

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JavaScript Minifier

Minify, compress, and optimize your JavaScript code. Remove comments, whitespace, and optimize syntax representation to reduce file sizes.

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JWT Decoder

Decode and analyze JSON Web Tokens (JWT) instantly. View header, payload, and signature data, check expiration status, and review security properties locally.

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Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes instantly from text or files. Compare hashes, toggle casing, and verify data integrity.

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Base64 Encoder Decoder

Encode and decode Base64 strings and files instantly. Ensure UTF-8 compatibility, check formatting validation rules, and parse binary data securely and locally.

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URL Encoder Decoder

Encode and decode URLs, query parameters, and special characters instantly. Parse URL components, inspect parameters tables, and format web paths locally.

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Overview

About Developer Tools Tools

Minify code syntax, validate schemas, and convert formats in a clean workspace. Inspect JSON trees, convert epoch timestamps, and prettify XML/YAML strings.

How to Use Tools in this Category

1

Open the Developer Tool

Choose between JSON Formatter, Minifier, Epoch Converter, or XML Validator.

2

Paste Payload or Code

Insert your raw code payload or configuration string in the editor.

3

Prettify or Minify

Click the action button, locate errors on specific lines, and copy the clean output.

Key Benefits of Our Developer Tools Toolbox

RFC Specifications

Checks JSON, XML, and YAML payloads against official structure parameters.

Syntax Highlighter Panels

Beautiful editors with line numbers, error alerts, and collapsible nodes.

Bi-Directional Converters

Convert data back and forth between formats (e.g. JSON to YAML) instantly.

Local CSS & JS Minify

Compress scripts and styles locally to reduce file sizes for web projects.

Frequently Asked Questions

Yes, our JSON formatter validates entries according to the RFC 8259 specification and outputs clean syntax-highlighted blocks with accurate error detection.

Yes, both CSS and JS minifiers process modern frameworks, minifying spaces, combining colors, and stripping comments cleanly.

Yes, our JSON, HTML, and CSS formatters provide full syntax highlighting, bracket matching, line numbering, and collapsible nodes for clear readability.

Our tools check for basic JSON syntax validity, missing commas, unescaped quotes, or syntax errors, showing you the exact line number of any error.

Yes. We support formatting conversions from JSON to YAML, JSON to XML, and vice-versa, preserving structure levels.

Yes, our URL processing scripts follow RFC 3986 encoding standards, keeping character query strings perfectly formatted.

Yes. You can convert Unix epoch timestamps (seconds/milliseconds) to human-readable dates and local clock times.

Yes. You can generate custom lorem ipsum passages, sentences, or word counts, and copy them directly to clipboard.