utilkit.net

Free Online Tools for Developers, Designers and Everyday Tasks

Format JSON, generate passwords, compress images, count words, convert colors, calculate dates and handle common developer checks in your browser. No account, no project setup and local processing wherever the browser can do the work.

Most used tools Jump straight to the exact utility

JSON Formatter Developer Tools Password Generator Security Tools Word Counter Text Tools Image Compressor Image Tools Age Calculator Calculator Tools UUID Generator Developer Tools Color Converter Design Tools Regex Tester Developer Tools

Discovery

Browse tool categories

Developer Tools Format, validate, encode, decode, inspect and debug structured data, code snippets, URLs, tokens and identifiers directly in your browser. 29 focused tools Security Tools Generate strong passwords, measure password strength, create hashes and handle local-only security tasks without sending private data to a server. 5 focused tools Text Tools Clean, count, sort, compare, convert and prepare text for publishing, spreadsheets, programming and everyday writing workflows. 6 focused tools Image Tools Resize, compress, convert and adjust images locally in the browser so files stay private and pages stay fast. 9 focused tools Design Tools Convert colors, test contrast, generate palettes and create production-ready CSS color values for accessible user interfaces. 5 focused tools Calculator Tools Calculate dates, ages, timestamps, units and measurements with compact utilities designed for quick repeat use. 18 focused tools

Focused workflows

Explore specialized toolkits

JSON Toolkit 12 tools: JSON Formatter, JSON Validator, JSON Minifier, JSON Tree Viewer, JSON Compare Developer Tools Base64 Toolkit 4 tools: Base64 Encode, Base64 Decode, File to Base64 Converter, Base64 to File Converter Developer Tools Date Toolkit 7 tools: Age Calculator, Date Difference Calculator, Add Days to Date, Unix Timestamp Converter, Week Number Calculator Calculator Tools Unit Converter 11 tools: Length Converter, Weight Converter, Temperature Converter, Storage Converter, Speed Converter Calculator Tools Developer Toolkit 13 tools: Regex Tester, UUID Generator, JWT Decoder, URL Encoder and Decoder, HTML Encoder and Decoder Developer Tools

Why UtilKit

Built for fast everyday utility work

UtilKit is built for small tasks that interrupt real work: validating an API response, creating a safe temporary password, shrinking an image before upload, cleaning a list, checking color contrast or converting a date for a deadline.

Most tools are designed to run directly in the browser, so common text, image, password and token workflows stay on your device. Each page also explains when to use the tool, what to check before copying results and which related utility may help next.

Frequently asked questions

What are the most popular UtilKit tools?

Popular tools include JSON Formatter, Password Generator, Word Counter, Image Compressor, Age Calculator, UUID Generator, Base64 Encoder and Color Converter.

Are UtilKit tools free?

Yes. UtilKit tools are free to use and do not require an account.

Do tools upload my files or text?

Browser-capable tasks run locally. Image, text, token and password workflows do not need a server upload to produce results.

Can I bookmark a specific tool?

Yes. Individual landing pages open the correct toolkit tab directly, so pages like JSON Formatter or Password Generator can be bookmarked and shared.

Does search support categories?

Yes. Search indexes individual tools, toolkits and categories, and the homepage highlights popular search intents.

Why are tools grouped into toolkits?

Related tasks often happen together. A JSON formatter may lead to validation or minifying, and an image resizer may lead to compression or conversion. Toolkits keep those next steps close.

Is UtilKit mobile friendly?

Yes. The interface is responsive, touch friendly and designed to keep primary controls close to results.

How does UtilKit decide what to publish?

New pages should solve repeatable, evergreen tasks with clear user value, practical examples, low maintenance needs and natural links to existing tools.

Is dark mode supported?

Yes. Dark mode is available from the header and persists locally in the browser.