# PaperPilot 8 Hacker News commenters recommended PaperPilot and 7 criticized it, November 2025 to November 2026. It was recommended in 1 of 13 months. **Verdict:** Free PDF tool that runs in the browser with WASM, sending no bytes to a server, which people value for privacy. Common caveat: critics say it is not production ready. ## Why people recommend it - Private, runs entirely in browser (3 comments): "it is private running in browser only. thats the feature i am looking for" ([source](https://news.ycombinator.com/item?id=50240647)) "The feature i like about this is privacy focused" ([source](https://news.ycombinator.com/item?id=50240638)) "0 bytes are ever sent to an external server." ([source](https://news.ycombinator.com/item?id=50238740)) - Runs in any browser via WASM (2 comments): "it's wasm. So you can run it in any browser. Super useful when no cli." ([source](https://news.ycombinator.com/item?id=50240101)) "I really like the approach with WASM and the browser sandbox." ([source](https://news.ycombinator.com/item?id=50241654)) ## What people warn about - Reinvents existing PDF tools (3 comments): "Why do people try to vibecode PDF engines that already exist in Rust?" ([source](https://news.ycombinator.com/item?id=50241196)) "All he wants was very easy to do already." ([source](https://news.ycombinator.com/item?id=50239644)) "People should stop building wheels." ([source](https://news.ycombinator.com/item?id=50241501)) - Cramped mobile layout, misaligned header (2 comments): "the box with the tool you've selected (where you upload and set parameters) is way too small on mobile" ([source](https://news.ycombinator.com/item?id=50244499)) "the text on the right in the header is not vertically aligned" ([source](https://news.ycombinator.com/item?id=50253593)) ## Alternatives hackers recommend - [Pdfwithlove](https://hackerapproved.com/p/pdfwithlove.md): 10 recommend - [qpdf](https://hackerapproved.com/p/qpdf.md): 8 recommend - [MinerU](https://hackerapproved.com/p/mineru.md): 6 recommend - [Marker by Datalab](https://hackerapproved.com/p/marker.md): 6 recommend - [Stirling PDF](https://hackerapproved.com/p/stirling-pdf.md): 6 recommend ## Cite as Hacker Approved, "PaperPilot", https://hackerapproved.com/p/paperpilot/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).