Free Online PDF Tools

100% Private ยท No Uploads ยท No Account

Merge, split, compress, watermark, redact, convert, and OCR your PDFs entirely in the browser. Your documents never leave your device.

Why Use SimpleTool for PDFs?

Zero Server Uploads

pdf-lib, pdf.js, QPDF, and Tesseract.js all run as WebAssembly in your browser. No file ever touches a remote server.

No Account or Limits

Process as many PDFs as you need โ€” no sign-up, no per-file fees, and no watermarks on output files.

Works Offline

Once the page loads, most tools work without an internet connection. Ideal for confidential documents on air-gapped laptops.

How SimpleTool Compares

FeatureSimpleTooliLovePDFSmallpdf
Files stay on your deviceโœ…โŒโŒ
No account requiredโœ…โœ…โŒ
No per-file limitsโœ…โŒ (2/hr free)โŒ (2/day free)
No watermarks on outputโœ…โœ…โŒ (free tier)
Works offline after loadโœ…โŒโŒ
Pixel-level redactionโœ…โŒโŒ
PDF โ†’ Excel with OCRโœ…โœ…โœ…

Frequently Asked Questions

Are these PDF tools really free?

Yes โ€” every PDF tool on SimpleTool is completely free with no per-file limits, no account required, and no watermarks on output. The tools are ad-supported.

Do my PDF files get uploaded to a server?

No. All processing happens in your browser using WebAssembly libraries like pdf-lib, pdf.js, QPDF, and Tesseract.js. Your files never leave your device โ€” no server connection is opened during document processing.

What is the maximum PDF file size?

There is no hard file-size cap โ€” the limit is your browser's available memory. Most modern browsers comfortably handle PDFs up to 200โ€“300 MB. For very large files, close other tabs to free memory.

Can I use these tools on my phone?

Yes. All tools are fully responsive and work on iOS Safari and Android Chrome. File pickers use the native OS file dialog, and processed files download normally.

How does the PDF redactor differ from a black rectangle?

SimpleTool renders each page to a 300 DPI canvas via pdf.js, destroys the underlying pixel data, then rebuilds the PDF with pdf-lib. The original text under the redaction is gone at the pixel level โ€” it cannot be recovered by removing an overlay.