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Fast, free tools for
developers & creators.

No signup. No install. No upload. Your data never leaves your browser.

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30+

Free tools

9

Categories

0

Servers involved

∞

Uses allowed

Browser-only — your data stays on your device

Instant — results appear as you type

No account — open a tool and start immediately

Forever free — no paywalls, ever

Browse by category

9 categories — find the right tool fast

JSON, Regex, JWT, UUID

Word counter, diff, lorem ipsum

Resize, compress, convert

Meta tags, slug, robots.txt

Percentage, ROI, date diff

Password, hash, strength

Post counter, image sizes

Base64, URL encode/decode

HEX, RGB, HSL converter

Zodiac, numerology, biorhythm

Featured tools

Handpicked from every category

Format, validate and minify JSON instantly.

Meta Tag Generator

Generate complete OG, Twitter Card and meta tags.

Resize images client-side — no upload needed.

Password Generator

Cryptographically strong passwords, zero server contact.

Word & Character Counter

Words, chars, sentences, reading time — live.

Post Character Counter

Twitter/X, LinkedIn, Instagram limits — live count.

Clean, SEO-friendly URL slugs with accent support.

Image Color Picker

Click any pixel — HEX, RGB, HSL + palette builder.

MD5, SHA-1, SHA-256, SHA-512 — real-time hashing.

Why useTool?

Built around one principle — tools that respect you

100% private

Every tool runs entirely in your browser using JavaScript and the Web APIs. Your input never touches a server — no logging, no storage, no tracking.

No friction

No account, no email, no CAPTCHA. Open a tool, paste your data, done. Every tool works immediately with zero configuration required.

Free forever

useTool is free to use with no rate limits, no premium tier, and no paywalls. Every tool, every time — no strings attached.

useTool is a growing collection of fast, free browser-based utilities built for developers, designers, writers, marketers, and anyone who works with data. Tools span nine categories: developer utilities like a JSON formatter and JWT decoder; text tools including a word counter, markdown preview, and case converter; image tools for resizing, compressing and format-converting images entirely client-side; SEO tools for generating meta tags, URL slugs, and robots.txt files; security tools including a cryptographic password generator and hash calculator; social media tools for character limits and hashtag generation; calculators for percentages, dates, and ROI; converters for Base64 and URL encoding; and a color picker and converter. Everything runs in your browser — your data stays on your device, always.

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