Tools

All Free Online Tools

Open the complete directory of free browser tools, organized by category and focused subcategory. Find tools for data formatting, text encoding, code generation, image processing, security, and more.

Structured Data Tools

Comprehensive collection of free browser-based tools for formatting, validating, comparing, querying, and converting JSON, XML, YAML, and CSV data — every tool runs entirely in your browser with no uploads, no sign-ups, and no server processing required.

18 tools

JSON & XML Formatters1 tools JSON Processing4 tools JSON Validation1 tools JSON Tree Viewer1 tools JSON & Text Diff1 tools JSONPath Tester1 tools JSON Key Extractor1 tools JSON Converters3 tools XML Formatter1 tools XML & YAML Validators2 tools YAML Formatter1 tools CSV Tools1 tools

Code & Web Tools

Comprehensive collection of free browser-based tools for Base64 and URL encoding, HTML and CSS formatting, Markdown preview and statistics, and regex validation — everything runs locally without uploads, accounts, or server processing.

13 tools

Base64 & URL Encoders2 tools Base64 & URL Decoders1 tools Base64 File Converter1 tools URL Encoding1 tools HTML Formatter2 tools Markdown Preview1 tools Markdown Statistics1 tools CSS Formatter1 tools Regex, URL & Email Validators3 tools

Text Content Tools

Comprehensive collection of free browser-based text tools for comparison, word counting, slug generation, case conversion, line sorting, and duplicate removal — everything runs locally without uploads or accounts.

7 tools

Text Comparison Tools1 tools Placeholder Text Generator1 tools Slug Generator1 tools Word Counter1 tools Case Converter & Line Sorter2 tools Duplicate Line Remover1 tools

Security & Identity Tools

Comprehensive collection of free browser-based security tools for password generation, hash calculation, HMAC computation, JWT inspection, UUID and NanoID creation, and password strength analysis — all running locally.

9 tools

Password Generators1 tools Hash & HMAC Generators2 tools JWT Inspector1 tools JWT Validator1 tools UUID & NanoID Generators2 tools Password Strength Checker1 tools HMAC Generator1 tools

Media & Files Tools

Comprehensive collection of free browser-based media tools for color conversion, QR code generation and scanning, image compression, resizing, and PDF creation — everything runs locally without uploads.

7 tools

Color Converters1 tools QR Code Generator1 tools QR Code Scanner1 tools QR Code Decoder1 tools Image Compressor & PDF Creator2 tools Image Resizer1 tools

Date, Time & Math Tools

Comprehensive collection of free browser-based date, time, and math tools for Unix timestamp conversion, unit conversion, date difference calculation, and percentage computation — everything runs locally.

5 tools

Unix Timestamp Converter2 tools Unit Converter1 tools Date Difference Calculator1 tools Percentage Calculator1 tools

Collections

API Data Review KitFormat, validate, and compare JSON API responses with a guided step-by-step workflow.Web Encoding ToolkitEncode Base64, percent-encode URLs, and format HTML source for transport and implementation.Password & Hash ToolkitGenerate secure passwords and calculate MD5 or SHA hashes for development and testing workflows.Image & Color ToolkitConvert sRGB colors, compress images, and arrange selected images in a downloadable PDF.

Workflows

API Payload Review

Turn a captured JSON response into a readable document, then compare it with a known reference payload.

JSON Formatter Text Diff Checker

Local Web Asset Preparation

Compress browser-ready images, assemble approved visuals into a PDF, and translate colors into implementation values.

Image Compressor and Dimension Resizer Image to PDF and Image Extension Converter HEX, RGB and HSL Color Converter