23+ Free Developer Tools

ToolifyDev
All Developer Tools in One Place

Free, fast, and privacy-first developer utilities. JSON formatter, regex tester, diff checker, and 20+ more tools — all running locally in your browser.

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Popular Tools

JSON Formatter & Validator

Format, minify, and validate JSON data online

Regex

Test and debug regular expressions with real-time matching

UUID

Generate unique identifiers (UUID/GUID) online

Pomodoro

Boost productivity with timed work sessions

Password

Create secure random passwords instantly

Password Generator

Create secure random passwords instantly

All Tools

Time Tools

Manage your time effectively

Timer

Set countdown timers for tasks and reminders

Stopwatch

Track elapsed time with lap functionality

Alarm

Set alarms and reminders

World Clock

View time across different timezones

Pomodoro

Boost productivity with timed work sessions

Code Tools

Format, validate, and transform code

JSON Formatter

Format, minify, and validate JSON data online

JSON to JS

Convert JSON to JavaScript object notation

Regex

Test and debug regular expressions with real-time matching

SVG to JSX

Convert SVG to React JSX components

Dev Utilities

Essential developer utilities

API Tester

Test REST APIs with custom requests and responses

UUID

Generate unique identifiers (UUID/GUID) online

Hash

Generate MD5, SHA-1, SHA-256, SHA-512 hashes

Password

Create secure random passwords instantly

Design & PDF

CSS tools and PDF manipulation

CSS Shadows

Create beautiful CSS box shadows visually

Gradients

Create stunning CSS gradients

Merge PDF

Combine multiple PDFs into one

Split PDF

Split PDF into separate pages

Productivity

Stay organized and focused

Snippets

Save and organize code snippets

Notes

Write and preview markdown notes

Tasks

Kanban board for task management

Focus Music

Ambient sounds for concentration

About ToolifyDev - Free Developer Tools

ToolifyDev is a comprehensive collection of free online developer tools designed to boost your productivity. Whether you need to format JSON, test regular expressions, generate UUIDs, or manage your tasks, we have the right tool for you.

Why Choose ToolifyDev?

Privacy First

All tools run locally in your browser. Your data never leaves your device.

Lightning Fast

No server roundtrips. Process data instantly with no waiting.

Always Free

No registration, no limits. Use all tools for free, forever.