Redacta
redacta.khattar.dev
What it is
Redacta is a free, open-source web tool for redacting or pseudonymising sensitive information in PDF files from plain-language instructions. It can identify and permanently remove names, email addresses, phone numbers, Social Security numbers, addresses, account numbers, and other personally identifiable information. It also detects embedded photos, signatures, logos, and screenshots for image redaction. Pseudonymisation replaces real names, addresses, and identifiers with fictional alternatives while keeping documents readable. Redacta says output PDFs retain their formatting, layout, fonts, and page structure. PDF parsing and redaction run in the browser through WebAssembly and MuPDF, and the site says files are not uploaded to a server. You provide your own Google Gemini or OpenAI API key, with requests sent directly to that provider. The free trial routes extracted text through a backend proxy. No signup, installation, watermarks, or usage limits are listed.
Spec sheet
- Purpose
- Redacta uses AI to redact or pseudonymise sensitive information in PDF documents from plain-language instructions.Read 8 Oct 2026 · redacta.khattar.dev
- Intended users
- The site lists legal professionals, HR teams and recruiters, healthcare providers and researchers, financial institutions, universities, and research institutions among its use cases.Read 8 Oct 2026 · redacta.khattar.dev
- AI providers
- Users can supply their own Google Gemini or OpenAI API key, with AI requests sent directly from the browser to the provider.Read 8 Oct 2026 · redacta.khattar.dev
- Formatting
- The site says redacted PDFs preserve their original formatting, layout, fonts, and page structure.Read 8 Oct 2026 · redacta.khattar.dev
- Image redaction
- It can detect and redact images embedded in PDFs, including photos, signatures, logos, and screenshots.Read 8 Oct 2026 · redacta.khattar.dev
- Limits and cost
- The site describes the tool as free with no usage limits; users pay any AI API charges incurred through their own key.Read 8 Oct 2026 · redacta.khattar.dev
- Open source
- Redacta describes itself as open source.Read 8 Oct 2026 · redacta.khattar.dev
- PDF processing
- PDF parsing and redaction run in the browser using WebAssembly (MuPDF), and the site says PDF files are never uploaded to a server.Read 8 Oct 2026 · redacta.khattar.dev
- Pseudonymisation
- It can replace real names, addresses, and identifiers with realistic fictional alternatives while preserving readability.Read 8 Oct 2026 · redacta.khattar.dev
- Setup
- Redacta requires no signup or installation and adds no watermarks, according to the site.Read 8 Oct 2026 · redacta.khattar.dev
- Text redaction
- It detects and permanently redacts personally identifiable information such as names, email addresses, phone numbers, Social Security numbers, addresses, and account numbers.Read 8 Oct 2026 · redacta.khattar.dev
- Trial privacy
- The site says its free trial tier routes extracted text through a backend proxy.Read 8 Oct 2026 · redacta.khattar.dev
Plans and prices
Strong points and limits
Strong points
- Free plan with no usage limits
- Redacts text and embedded PDF images
- Preserves stated PDF formatting and layout
- Runs PDF processing in the browser
- No signup, installation, or watermarks
Limits
- AI processing requires your own API key
- Users pay provider API charges
- Free trial routes extracted text through a proxy
Who it suits
It suits legal, HR, healthcare, financial, education, and research users handling sensitive PDFs. It is also for users who can provide a Gemini or OpenAI API key and accept provider API charges.
Verdict
Redacta focuses on browser-based PDF redaction and pseudonymisation, including both text and embedded images. Its free, no-limit plan has no software charge, but AI use depends on your own provider key and associated charges.
Where Specifiction places it
- Document Redaction Software#22 of 277.2