SStax

Free Online Tools for Developers, Creators & Everyone

100+ free tools — format, calculate, convert in your browser. No login. No tracking.

Tools launching daily — first 12 live this week

Categories

Pick a category to find what you need.

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Developer Tools

JSON, regex, encoding, hashing, color, CSS, and more

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Finance Calculators

EMI, SIP, tax, salary, GST, PPF, NPS, and more

AI

AI Writing

Humanize, paraphrase, detect, summarize, generate

Coming soon

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Social Media

Instagram fonts, hashtag generators, image resizer

Coming soon

W

WhatsApp

Link generator, QR code, message formatter

Coming soon

P

PDF Tools

Compress, merge, convert PDF to/from Word, images

Coming soon

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Image Tools

Resize, compress, convert formats, all in-browser

Coming soon

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Health

BMI, calorie, and other personal health calculators

Coming soon

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Creator Tools

YouTube thumbnail, earnings calculator, more

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Career & Business

Resume builder, invoice generator, email signatures

Coming soon

Why Stax?

100% browser-based

Every tool runs locally in your browser. Your data never touches our servers.

No login required

Open a tool. Use it. Done. No accounts, no email walls, no friction.

Built for speed

Static pages, instant tool load, mobile-first. The fastest way to get the job done.

Need something more powerful? Learn about Stax Pro — coming soon with batch processing, AI features, and unlimited usage.