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About FolderNook

FolderNook makes free PDF tools that work entirely in your browser: combine, split, rotate and organize pages, convert PDFs to images or text, turn photos into a PDF, add page numbers, Bates numbers and watermarks, and compare two versions of a document. Your files are never uploaded, so contracts, statements and records stay on your own device.

How our tools work

Every tool on FolderNook runs inside your web browser. When you open a file, your own device does the work using built-in browser technology and WebAssembly. Nothing is uploaded, so the tools are fast, work with large files, and keep your files private.

Free, without sign-ups

You'll never need an account or an email address. The site is paid for by ads, which we keep out of the way of the tools themselves.

Who we are

FolderNook is built and maintained by BlueEra. We'd love to hear which tool you'd like next, or about anything that doesn't work: get in touch.

More free tools from us

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  • CentNook: free margin, VAT and ROI calculators and a barcode generator.
  • SundialNook: free hours, time card, overtime and days-from-today calculators.
  • WrenchNook: free concrete, gravel, square footage and tire size calculators.
  • PrismNook: free image compressor, resizer and HEIC to JPG converter.
  • WaveNook: free mic test, voice recorder, audio cutter and converter.

Open-source software

FolderNook is built with Preact, Lucide icons, Mona Sans font, pdf-lib, PDF.js, fflate (ZIP), heic-to HEIC decoder. Thank you to their authors. See the open-source licences for versions, source code and licence texts.