Tiny tools, one box.
Small, fast, single-purpose tools — calculators, converters, editors and checkers that run right in your browser.
15 categories
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Calculators
Mortgage, BMI, percentage, grade, finance, math and 2,000+ more.
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PDF tools
Merge, split, compress and convert PDFs, in your browser.
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Image converters
SVG to PNG, JPG to PNG, PNG to GIF and every image type change.
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File converters
Convert files between formats without installing anything.
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Image editing
Crop, resize, filter, enlarge and compress pictures.
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Social media tools
Profile pictures and post sizes for Facebook, LinkedIn and Twitter.
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Text tools
Word counts, case conversion, formatters and text utilities.
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Color & design tools
Pickers, converters, gradients, palettes, favicons and memes.
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Developer tools
Regex, timestamps, JSON, formatters and minifiers.
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Everyday tools
Timers, countdowns, pickers and other small daily helpers.
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Cybersecurity tools
Password generator, hash checker, certificate and header checks.
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QR code tools
URL, Wi-Fi, contact, vCard and bulk QR codes.
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Website performance tools
Page size, waterfall, cache headers and Core Web Vitals.
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Citation and bibliography tools
APA, MLA, Chicago, BibTeX and reference list sorting.
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Browser and device tools
Screen, keyboard, microphone, webcam and compatibility tests.
Why TED?
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Fast by design
Tiny pages, no installers, no waiting. Tools open instantly and get straight to the job.
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Free to use
Every tool on TED is free to use, with no account and no sign-up.
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Private where possible
Most tools run entirely in your browser, so your files and numbers never leave your device. A few server-side checks, like certificate and performance tools, fetch public data by design.
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Works everywhere
Phone, tablet or desktop — every tool works in a modern browser, with nothing to install.
How it works
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Find your tool
Search above or pick a category.
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Use it instantly
No downloads, no sign-up. The tool opens ready to go.
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Get your result
Copy, download or convert — done in seconds.
Tiny tools for everyday tasks
TED is a box of tiny, single-purpose programs that run in your browser: calculators for money, health, maths and grades; converters for PDFs, images and files; editors for pictures; QR code generators; text tools; color and design tools; developer helpers; and security checks. Each tool does one job well, with no clutter and no learning curve.
Start with Calculators for everyday maths, or PDF tools to merge, split and compress PDFs without installing anything.
Why tiny tools?
Big software tries to do everything and ends up slow and complicated. A tiny tool does one thing, opens fast, and gets out of your way — which is why TED keeps every tool small, focused and free.
Frequently asked questions
Are TED tools really free?
Yes. Every tool on TED is free to use, with no account and no sign-up. Developers who want programmatic access can use paid API plans.
Do I need to install anything?
No. Every tool runs in your browser on any phone, tablet or desktop.
Is my data uploaded anywhere?
Most tools run entirely in your browser, so your files and numbers never leave your device. A few server-side checks, like certificate and performance tools, fetch public data by design.
Do the tools work on my phone?
Yes. Every tool is built to work in a modern mobile browser.
What if the tool I need is missing?
New tools are added regularly. Browse the categories above — your tool may already be on its way.