pdf-lib
How vibe coders and indie builders use pdf-lib: 20 projects built with it and 1 built for it since May 2026.
Projects built with it
20
Share of stated stacks, 4 wks
0.2%
Last 4 weeks vs 8 before
too few to tell
Add-ons built for it
1
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-lib
- 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?”
- PDF Merger — Merges multiple PDF files in the browser with drag-and-drop reordering, without uploading them to a server.“I built a 100% local PDF merger — no uploads, no tracking, just a single HTML file”
- Toolthy — Provides a collection of free browser-based utilities for PDF, image, audio, calculators, QR codes and network diagnostics, processing files locally without uploading them.“I built a free tool site with 30+ browser-based utilities (PDF, images, audio, calculators) — everything runs client-side, nothing gets uploaded”
- Cantala — Shuffles a lotería deck and calls each card aloud with recorded voices, plus generates printable non-repeating lotería boards as PDF.“I built a free Mexican lotería caller that sings all 54 cards, plus a PDF tabla generator”
- 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”
- MiniTools — Provides a collection of browser-based utilities for editing PDFs, compressing and converting images, running calculators, and doing small text and developer tasks, all processed locally in the browser.“MiniTools: 47+ free browser utilities (PDF editing, image compression, calculators) that run 100% locally with zero server uploads”
- 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”
- PuzzleBindery — Generates puzzle books from selected puzzle types and exports them as print-ready PDFs that meet Amazon's print specs.“I built a browser-based puzzle book generator, then published a book with it to find out whether the PDFs actually pass Amazon's printer”
- SVG Spark — Bundles ten single-page utilities, such as file conversion, PDF splitting and merging, and code formatting, that run entirely in the browser without uploading data.“I got tired of ad-heavy converter sites uploading my data to the cloud, so I built a 100% client-side web utility hub (10 tools, free server processing, zero file uploads).”
- toolbox-mcp — Gives AI agents 35 local tools for reading PDFs, exact math, unit and timezone conversion, QR codes, image and PDF editing, crypto, regex and diffs.“vibe coded an MCP server with 35 tools so my AI agent stops getting basic stuff wrong”
- 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.”
- I built a PDF tool that runs… — Merges, reorders, rotates, splits and strips metadata from PDFs entirely in the browser without uploading files.“I built a PDF tool that runs entirely in your browser — merge, reorder, rotate, split, strip metadata. No upload, no signup.”
Latest add-ons built for pdf-lib
- boxpdf — Generates PDF documents from a SwiftUI-style layout API and streams large PDFs with bounded memory.“boxpdf: streaming PDFs with bounded memory on Cloudflare Workers”