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Your files never leave your device.
PDF, text, and calculator tools that run entirely in your browser — no uploads, no signup, no watermarks.
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Featured tools
Merge PDF
Combine multiple PDF files into one document in your browser — free, no signup, and your files are never uploaded.
Compress PDF
Shrink PDF file size by recompressing embedded photos and scans — text stays sharp and selectable. Free, private, no upload.
Image Compressor
Shrink JPG, PNG, and WebP file sizes with a live quality slider — see the new size before you download. Nothing is uploaded.
Background Remover
Remove the background from a photo in your browser with a free AI model — get a clean transparent PNG. Nothing is uploaded; your image stays on your device.
JSON Formatter
Format, validate, and minify JSON as you paste — 2/4-space or tab indentation, clear syntax errors, copy or download. Private.
Word Counter
Count words, characters, sentences, and paragraphs instantly as you type — free, no signup, and your text never leaves your browser.
Paycheck Calculator
See your take-home pay per paycheck after federal income tax, Social Security, Medicare, and state tax — full annual breakdown and effective rate shown.
California Paycheck Calculator
Estimate California take-home pay after federal tax, FICA, and all nine CA state brackets — with the FTB formula and sources shown.
Tax Refund Calculator
Estimate your 2026 federal tax refund — or what you may owe — from income, W-2 withholding, and the child tax credit, with the math shown.
Mortgage Payment Calculator
Estimate your monthly mortgage payment, total interest, and total cost from loan amount, rate, and term — with the exact formula shown.
BMI Calculator
Check your body mass index in metric or imperial units and see your WHO weight category instantly — with the exact formula and sources shown.
NDA Generator
Create a free non-disclosure agreement (mutual or one-way) — fill in the parties and terms, preview the clauses, and download a clean PDF, all in your browser.
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Private by design
File tools run entirely in your browser — there's no upload endpoint at all. Nothing is transmitted or stored.
Instant, no signup
No accounts, no watermarks, no artificial limits. Open a tool and it just works — even on your phone.
Math you can check
Every calculator shows its formula, assumptions, and official sources, with a last-updated date.