PDF.js
How vibe coders and indie builders use PDF.js: 24 projects built with it since May 2026.
Projects built with it
24
Share of stated stacks, 4 wks
0.1%
Last 4 weeks vs 8 before
too few to tell
Add-ons built for it
0
Share of stated stacks, per week
Share rather than counts, so changes in how many posts a subreddit lets through don't show up as trends.
Often used with
What's built with it
Latest projects built with PDF.js
- ToolDesk — Provides 41 browser-based file and utility tools, such as PDF editing, image compression and conversion, invoice generation, and QR codes, that process files locally without uploading them.“I built 41 browser tools that never upload your files (PDF editor, image compressor, invoice maker). Two months in: 5 clicks from Google. What am I doing wrong?”
- GridPDF — Provides 28 PDF tools such as merge, split, compress, and Word to PDF that run entirely in the browser without uploading files.“> I built a free, offline, privacy-first SmallPDF alternative after my sister was charged 9usd to compress her CV - no backend, all client-side”
- robinpdf — Runs 33 PDF tools such as merge, split, compress, convert, OCR, sign and redact entirely in the browser without uploading files.“My PDF site works with the Wi-Fi off. That's the whole pitch.”
- pdflee — Merges, splits, reorders and extracts PDF pages in the browser, and offers prepaid-credit PDF translation that keeps the original layout.“I got tired of paying €9 / month to merge 2 PDFs a year, so I built a pay-per-cents PDF toolkit. 3 months in, Google sends me ~5 clicks a month. Roast it.”
- Local PDF Studio — Edits, signs, fills, merges, splits and compresses PDF files entirely inside the Chrome browser without uploading them.“Another free extension from my kitchen: Local PDF Studio, sign/fill/edit PDFs completely offline, no account, no upload”
- FileFlow — Processes PDF and image files in the browser locally, offering merge, split, compression, resizing, format conversion and ZIP generation.“Built this as a side project and now I’m looking for someone to take it over”
- MarkOut — Extracts highlighted regions from PDFs in the browser and exports them as ordered Markdown.“I made MarkOut: turn highlighted PDFs into clean Markdown, 100% in your browser”
- Kaiser Diagrama & Tabletop — Provides a locally hosted multiplayer canvas for running tabletop RPG sessions with tokens, fog of war, layers, and location-based sound zones.“I Built a Local, Self-Hosted Figma/Tabletop RPG Tool with Vibe Coding — Looking for People to Tear It Apart”
- Motherfucking Print Server — Serves a web print menu that previews files and sends them to Windows printers through SumatraPDF.“Made a "Print Server" on Node.js”
- PrintReadyKit Poster Splitter — Splits an image or PDF into tiles sized for regular printer paper, with alignment marks and overlap for taping together.“I built a browser-based poster splitter — no upload, no signup, no watermark”
- Magpie — Captures web sources like PDFs and YouTube transcripts, runs deep research over them with source-linked answers, and lets users chat about the page they are on.“Vibecoding: An Open-Source, Local Deep-Research Chrome Extension”
- reaver — Matches an uploaded résumé or typed profession against public job listings and shows only the openings that fit the candidate's skills.“I built a free tool that matches your résumé to job openings instead of making you scroll boards”
- statement2csv — Converts bank statement PDFs into CSV files with date, description, amount and balance columns, parsing them locally in the browser.“I built a bank statement PDF to CSV converter that runs entirely in your browser (nothing gets uploaded)”
- StatementLock — Parses downloaded bank and credit card statement PDFs in the browser, categorizes transactions with local rules, and flags recurring charges and anomalies.“I'm a retired programmer. I built a bank statement analyzer where your data never touches my servers. My wife and I have very active credit card and checking accounts and I wasn't doing a good enough job monitoring them or tracking our spending.”
- vexyn — Runs 22 file tools such as PDF merge, split, compress, OCR, image conversion and metadata removal entirely in the browser without uploading files.“Built 22 browser tools after getting tired of online PDF sites uploading my files. 1 week, 0 servers.”