Alternatives

Products that do what HTPBE.TECH does

Detect if a PDF was tampered with — in seconds

1MY
Make your PDF look scanned in browser▲579
Implement scanyourpdf.com in JavaScript. No backend servers needed.
2022 · lookscanned.io
2PD
PDF Debugger – Inspect Structure of PDF Files▲157
2023 · pdf.hyzyla.dev
3
ReactPDF - Audit tool ▲5
Check if a “redacted” PDF is actually safe to share
Jan 2026
4
PDFShift▲391
Convert any HTML to PDF with a single POST request.
2018
5PD
PDF-Diff - Visualize any differences between two PDFs▲169
2022 · github.com
6
DeftPDF▲104
A reliable, intuitive and productive PDF Software
2019
7
Diffchecker 2.0▲153
Check the differences between two text files, images or PDFs
2020
8PF
Privacy friendly suite of PDF tools▲99
Hi HN, I have been working on a set of PDF tools that does all the processing directly in the web browser. From time to time I needed to do some simple PDF manipulations like merging PDF files. Sometimes the files contain my personal data and I was not comfortable using other online services where the file usually is uploaded to a remote server. Behind the scenes there is a small library written in C++ doing the changes to the PDF files. I am using the Emscripten compiler to compile it to WebAssembly that is running in the browser. It was a very good learning for me and it was easier than I…
2023 · pdfux.com
9HC
Hnpdf.com – Quick access to pdfs shared on Hacker News▲70
2022 · hnpdf.com
10PD
PDF Differ▲62
2023 · pdfdiffer.com
11
Flipp▲52
Private PDF Tools That Never Upload Your Files
Jun 2026 · unfollowaman.tech
12
Tamperlens▲2
Check if a PDF redaction actually removed the text
25d ago · tamperlens.com
13
PDF Ghost▲2
Invisible forensic watermarks to trace PDF leaks instantly
Mar 2026 · pdfghost.com
14
KeptPDF▲4
Redact for real. Do everything. Upload nothing.
Jun 2026 · keptpdf.com
15PI
PDFMergely – In-browser PDF tools that never upload your files▲18
Jun 2026 · pdfmergely.com
16
pdfyr▲3
Privacy-first PDF tools with a REST API
Jun 2026 · pdfyr.com
17DB
Diffing Binary Files▲19
My partner reviews a lot of P&IDs (piping and instrumentation diagrams) and the adjacent files involved (excel, docx, pdfs, acd/l5x, etc). In his company, these are usually done in Bluebeam. It's really hard to see the diff + keep track of all the revisions resulted by these iterations. They end up storing files like "rev3_final_redlined.pdf". We've been looking for something close to Github to do these reviews, but haven't found one easy enough for folks with no CLI experience to understand and use (happy to check out more tools if you know any). So I built withkord.com to help with…
Aug 2026 · withkord.com
18
PDF Extractor API▲5
Extract JSON data from PDFs with a developer-friendly API
Jan 2026
19PA
ParePdf, an app for comparing pdfs▲9
2018 · parepdf.com
20P5
PDFly – 56 free PDF tools that run in the browser▲10
Hi HN! I built PDFly — a PDF toolkit that runs entirely client-side. No file uploads, no server processing, no account needed. It has 56 tools including merge, split, compress, convert, redact, compare, and an AI chat feature to ask questions about your PDF content. Everything runs in your browser using [mention your tech stack if relevant, e.g., WASM/JS libraries]. Would love feedback on the tools, UX, or anything else!
Jul 2026 · pdfly.uk
21
Fluxbase▲2
PDF tools that never upload your files
May 2026 · fluxbase.me
22
YourPDF Checker▲8
The platform that makes PDF accessibility understandable
Jul 2026 · yourpdfchecker.com
23
PDFCensor▲2
Redact sensitive information from PDF privately and offline.
11d ago · apps.apple.com
24CP
CrabPDF – privacy-first PDF editor that edits real text▲10
Most PDF editors just overlay text boxes. CrabPDF modifies the actual text inside the file. Nothing leaves your computer... no server, no account, works offline.
Apr 2026 · crabpdf.com

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