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LibreWolf VS KeptPDF

Compare LibreWolf VS KeptPDF and see what are their differences

LibreWolf

LibreWolf, the community-maintained fork of Librefox: a privacy and security-focused browser.

Rating
5.0 · 1 review
Promote on VibeVoted
Alternatives Is it good?
KeptPDF

Redact, edit, OCR, and sign PDFs entirely in your browser. The file never leaves your device. Free, no account needed.

Rating
0 reviews
Pricing
Freemium $29 / Monthly (Pro, 1 user)
1 VibeVoted session
Alternatives Is it good?
Thalam
OpenAI-compatible API gateway for GPT, Claude, Gemini, DeepSeek, Qwen, Kling and more. One key, one endpoint, one bill. Pay per token, no lock-in. sponsored

Which is more popular?

Based on our record, LibreWolf seems to be more popular. It has been mentioned 35 times since March 2021.

social mentions
35 vs 0
Web Browsers popularity
100% vs 0%
alternatives listed
127 vs 26

Base details

Website, pricing, platforms and company facts side by side.

LibreWolf
KeptPDF
Website librewolf.net keptpdf.com
Pricing —
Freemium $29 / Monthly (Pro, 1 user) Official pricing
Company — Startup from the United States · 2026
Listed in
Web Browsers Browsing Experience Security & Privacy Customisable Web Browser +1
PDF Tools Pdf Redaction OCR PDF Editor PDF Security & Privacy PDF Readers And Editors AI Tools +5

About LibreWolf and KeptPDF

In their own words, as submitted to SaaSHub.

LibreWolf
KeptPDF

No description of LibreWolf yet.

KeptPDF is a PDF toolkit that runs entirely in your browser. Nothing uploads: every tool runs on your own device, so the document never touches a server. What it does: Redaction that auto-detects names, SSNs, phone numbers, addresses, and dates, then removes the underlying text instead of drawing...

Read more about KeptPDF

Features and specs

What each product offers, as listed by its team.

LibreWolf 5 features
KeptPDF 5 features
  • Privacy-Focused
    LibreWolf is designed with privacy in mind, removing telemetry and tracking features found in standard Firefox releases.
  • Open Source
    Being an open-source project, it ensures transparency and the ability for the community to inspect and contribute to the codebase.
  • Customizable
    LibreWolf allows extensive customization, enabling users to modify settings according to their specific privacy and usability preferences.
  • Enhanced Security
    Additional security features such as hardened settings, built-in uBlock Origin, and strict firewall rules provide a more secure browsing experience.
  • Ad and Tracker Blocking
    By default, LibreWolf includes tools to block ads and trackers, which can lead to a faster and less intrusive browsing experience.

Possible disadvantages

  • Compatibility Issues
    Some websites may not function correctly due to the enhanced security and privacy settings, requiring manual adjustments.
  • Performance Overhead
    The additional security and privacy features can sometimes lead to a slight decrease in performance compared to other browsers.
  • Limited Support
    Being a community-driven project, LibreWolf may have less comprehensive support and slower updates compared to mainstream browsers.
  • Learning Curve
    Users unfamiliar with advanced browser customization may find it challenging to adjust settings to their liking.
  • Extension Compatibility
    Some add-ons and extensions available for Firefox might not be fully compatible or require additional configuration to work correctly with LibreWolf.
  • Simple PDF Editing
    KeptPDF offers straightforward tools for editing, merging, splitting, and converting PDF files, making it accessible for users who need quick document management without a steep learning curve.
  • Web-Based Accessibility
    Being a web-based tool, KeptPDF can be accessed from any device with an internet connection, eliminating the need for software installation and allowing use across different operating systems.
  • Multiple File Format Support
    The platform supports conversion between PDF and various other file formats, offering flexibility for users who work with documents in different formats.
  • No Installation Required
    Since it operates in a browser, users can save storage space on their devices and avoid compatibility issues that sometimes arise with desktop software installations.
  • Quick Processing
    KeptPDF is designed to process PDF tasks efficiently, allowing users to complete common document tasks like compression or conversion in a relatively short amount of time.

Analysis

An editorial look at what each product does well and who it suits.

LibreWolf
KeptPDF

Overall verdict

  • If user privacy and security are your top priorities, then LibreWolf is a strong choice. It improves upon Firefox's already extensive privacy features, making it particularly appealing for privacy-conscious users.

Why this product is good

  • LibreWolf is considered a good browser by many because it focuses on privacy and security. It is a fork of Firefox, which means it benefits from the robust features and support of the Mozilla ecosystem while being stripped of telemetry and other features that may compromise user privacy. LibreWolf also comes with enhanced default settings for privacy, ad/tracker blocking, and other security features.

Recommended for

  • Users who are concerned about online privacy and data security.
  • Individuals who are looking for a Firefox-based browser without telemetry.
  • Users who appreciate the open-source software community and want to support it.
  • Advanced users who prefer a browser with customizable privacy and security settings.

No analysis of KeptPDF yet.

Videos

Walkthroughs and reviews on video.

LibreWolf 5 videos + Add
KeptPDF 0 videos + Add

LibreWolf Review - The Privacy Respecting FireFox Alternative!

More videos

  • - LibreWolf: like Firefox, but better! - Linux app pick
  • - Librewolf Review
  • - Wait, LibreWolf got even BETTER? (LibreWolf Review)
  • - LibreWolf & Brave - Web Browsers in 2023

No KeptPDF videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
LibreWolf
KeptPDF
100% 100%
Web Browsers
0% 0%
0% 0%
PDF Tools
100% 100%
100% 100%
Security & Privacy
0% 0%
0% 0%
PDF
100% 100%

Questions & Answers

As answered by people managing LibreWolf and KeptPDF.

What makes your product unique?

KeptPDF's answer:

KeptPDF runs entirely in your browser. Your file, and the text inside it, never leaves your device. Not to an AI, not even to us. You can open your browser's network tab and watch: the document bytes never go out.

Most online PDF tools upload your file to a server first, and some "AI redaction" services quietly send your document text to a third-party model. That is the exact risk people are trying to avoid when they redact something.

KeptPDF also does true redaction. The text is removed from the file, not covered with a black box you can copy out later. Every redaction produces a verification certificate you can share with the file.

Why should a person choose your product over its competitors?

KeptPDF's answer:

Three reasons.

Privacy you can verify, not just a promise. Processing happens locally in the browser, so there is no upload step to trust. We do send anonymous usage counts for quota, and we say so plainly, but never your document.

Real redaction with proof. Removed text is permanently gone, and you get a certificate showing the file was checked for leftover extractable text. Automated detection cannot catch everything, so a final human review is still your job, and the tool says that too.

It works on a phone. Most PDF suites assume a desktop. KeptPDF was built and used on a phone first, so redacting a document while you are standing in a hallway actually works.

How would you describe the primary audience of your product?

KeptPDF's answer:

Anyone who has to hand a document to someone else and needs the sensitive parts gone first.

In practice that is solo attorneys and small law firms, accountants and tax preparers, healthcare and records staff handling requests, HR teams, and individuals dealing with their own medical, legal, or financial paperwork.

The common thread is not an industry. It is a person who cannot upload a confidential file to a random website, and who does not have an enterprise IT budget to solve it.

What's the story behind your product?

KeptPDF's answer:

A family member got seriously ill. We spent most days at the hospital, and straight answers were hard to come by, so we leaned on AI tools to make sense of the records, notes, and lab results.

But you cannot paste a medical record into an AI chat. You have to strip the names, the ID numbers, the diagnoses first. And almost every tool we found either wanted to upload the whole file to a server, or "auto-redacted" by sending the document text to an online AI. That was the exact thing we were trying to avoid.

Most of this was happening on a phone, at a bedside. So I built the tool I needed: redaction that runs on the device, works on mobile, and never sends the file anywhere. That turned into KeptPDF, which is now a full PDF suite with over 20 tools, all local-first.

Which are the primary technologies used for building your product?

KeptPDF's answer:

The app is plain JavaScript with no front-end framework, which keeps it fast and keeps the code auditable.

PDF work happens in the browser using pdf.js for rendering and pdf-lib for writing. Text recognition uses Tesseract running as WebAssembly. Password and encryption handling uses a WebAssembly build of qpdf. It is a Progressive Web App, so it installs and works offline.

The thin server side is Node on Vercel, with Postgres for accounts, Stripe for billing, and Resend for email. None of those ever see a document.

Who are some of the biggest customers of your product?

KeptPDF's answer:

KeptPDF is early and independent, and we do not publish customer names. The product is privacy-first by design: we never see your documents, and we do not track who our users are or what they work on. Publishing a client list would sit badly next to that.

The user base today is mostly solo attorneys, small firms, accountants, and individuals handling their own records.

User comments

Share your experience with using LibreWolf and KeptPDF. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

LibreWolf 5.0 · 1 review
KeptPDF no reviews yet

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We have no reviews of KeptPDF yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

LibreWolf 35 mentions
KeptPDF 0 mentions
  • Mozilla Introduces Firefox Enterprise
    If you are unable / unwilling to install an extension, Librewolf includes and enables uBlock Origin by default. https://librewolf.net/ It is a Firefox fork with sane, user-respecting defaults. Of course it breaks sites that do not... - Source: Hacker News / 23 days ago
  • The Future of Web Browsers
    There are already decent hard ( e.g. http://www.palemoon.org/ ) and soft ( e.g. GNU IceCat - https://www.gnu.org/software/gnuzilla , LibreWolf - https://librewolf.net/ , Tor Browser - https://download.torproject.org/ etc. See... - Source: Hacker News / about 2 months ago
  • Mistral X Mozilla: Private, Multilingual AI Browsing
    Fyi, you may want to check out Librewolf: https://librewolf.net/. - Source: Hacker News / about 2 months ago

View more

Tracking KeptPDF since Aug 2026.

Alternatives to LibreWolf and KeptPDF

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