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Open Redact

Open Redact is a browser-based app for redacting sensitive PDF files.

Place
#22 of 27
Score
5.8
Open Redact's website

What Open Redact is

Open Redact is a browser-based app for redacting sensitive PDF files. Users work with a PDF in the browser, make redactions, and export the result. The maker says processing and export happen locally and that the PDF is not uploaded to its servers. The app has a free plan at no cost, with no account wall. Open Redact is described as open source, and its full source code is publicly reviewable on GitHub. It uses MuPDF.js as its PDF engine. The site notes that MuPDF is available under AGPL v3 or a commercial license and advises reviewing AGPL obligations when deploying or distributing derivative work. The listed platform is web, and PDF is the input format. The maker's homepage does not name third-party integrations or downloadable desktop or mobile versions. That makes the browser workflow and local-processing claim central considerations for people choosing a PDF redaction tool; those assessing its implementation can review the source code.

Good

  • Free plan at no cost.
  • No account wall to use the app.
  • Redaction and export happen locally in the browser.
  • PDF is the listed input format.
  • Full source code is publicly reviewable.

Watch out

  • Listed platform is web only.
  • Homepage names no downloadable desktop or mobile versions.
  • MuPDF licensing may require reviewing AGPL obligations.

Who it suits

Open Redact suits people who want to redact PDFs in a browser without an account wall. It may also interest people who want to review the source code or evaluate the stated MuPDF licensing terms.

Verdict

Open Redact offers browser-based PDF redaction with a free plan and a stated local-processing workflow. Review the MuPDF licensing guidance if deploying or distributing derivative work.

Plans and prices

From Open Redact's own pricing page, checked 8 Oct 2026.

All about pricing
PlanPriceWhat it gives you
FreeFreeFree to use · no account wall · no hidden paywall

The facts

Each one read from Open Redact's own pages, with the date it was checked.

What it does

Account
The maker says there is no account wall to use the app.checked 8 Oct 2026
Downloads
The maker's homepage describes an in-browser app and does not name downloadable desktop or mobile versions.checked 8 Oct 2026
Integrations
The maker's homepage does not name third-party integrations.checked 8 Oct 2026
License
The site says MuPDF is available under AGPL v3 or a commercial license and advises reviewing AGPL obligations when deploying or distributing derivative work.checked 8 Oct 2026
Local processing
Redaction and export happen locally in the browser, and the site says the PDF is not uploaded to its servers.checked 8 Oct 2026
Open source
The maker describes the product as open source.checked 8 Oct 2026
PDF engine
Open Redact uses MuPDF.js.checked 8 Oct 2026
Purpose
Open Redact lets users redact sensitive PDFs directly in their browser.checked 8 Oct 2026
Source code
The full source code is publicly reviewable at https://github.com/tsabkuro/OpenRedact.checked 8 Oct 2026

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