Tools.Fun

Fun & Free Tools

Pure Frontend Processing, No Data Upload

Online Tools Collection

All tools run locally in your browser. Your data never leaves your device. Safe, fast, and free.

Categories:
📝

JSON Formatter

Beautify, minify and validate JSON data

📑

JSON to CSV

Convert JSON to CSV format

🔍

JSON Compare & Diff Tool

Compare two JSON objects and visualize differences with highlighting

📄

Markdown Editor

Real-time preview, GFM support, export PDF

🔄

Text Diff

Compare differences between two texts

🔍

Regex Tester

Test regular expressions in real-time

Timestamp Converter

Unix timestamp to datetime converter

🔐

Base64 Encoder/Decoder

Base64 encoding and decoding for text and images

🆔

UUID Generator

Generate UUID v4 in bulk

🔒

Password Generator

Generate secure passwords with strength meter

📱

QR Code Generator

Convert text to QR code

🔗

URL Encoder/Decoder

URL encoding/decoding and parameter parsing

🎨

Color Picker

Color format conversion and contrast detection

🛡️

Hash Calculator

Calculate SHA hash values for text

🔑

JWT Decoder

Parse JSON Web Tokens

⚖️

Unit Converter

Length, weight, temperature conversion

⏱️

Cron Expression

Visually generate cron expressions

📊

Text Statistics

Count words, characters, and reading time

🎲

Random Data Generator

Generate various types of test data

🌑

CSS Shadow Generator

Visually generate box-shadow styles

🌈

Gradient Generator

Create linear or radial gradients

🖼️

Placeholder Image Generator

Generate custom placeholder images

🔄

Image Format Converter

Convert image formats (PNG, JPG, WebP)

🗜️

Image Compressor

Compress image size and optimize quality

SVG Optimizer

Optimize SVG code and reduce file size

🔖

Favicon Generator

Generate various sizes of website icons

📕

PDF Generator

Convert Markdown to PDF documents

📈

Math Function Plotter

Plot mathematical function graphs

📊

Chart Generator

Create data visualization charts

🔀

Flowchart Diagram

Create diagrams with Mermaid

Why Choose Us

🔒

Data Security

All processing done locally, data never leaves browser

Fast Response

No network requests, instant data processing

🌙

Dark Mode

Switch between light and dark themes to protect your eyes