About
Made by Luna Sutian.
LunaFile is a small, focused file conversion website. Built during a summer break by one developer, with one goal: do the boring stuff well, for free, without selling anyone's data.
Free
Every tool is unlimited and unwatermarked.
Private
Files auto-delete after 1 hour. We never look.
Fast
No signup walls, no upsell flows, no friction.
Why this exists
Existing file converters either upsell aggressively, slap watermarks on the output, force account creation, or quietly mine data. LunaFile takes a different bet: build six tools that work really well, support the site through tasteful ads, and never get in the user's way.
The stack
LunaFile is a Next.js website on Vercel that talks to a small Node.js processing server on Railway. PDFs are compressed with Ghostscript, converted to Word with pdf2docx, converted from Word with LibreOffice. Images are handled by Sharp. HEIC files are converted with heic-convert. Files are stored briefly on Cloudflare R2 with auto-delete.
What's next
Phase 2 will add audio and video tools (MP4 compression, MP3 trimming, video to GIF). Phase 3 introduces optional paid features for power users (priority queue, larger files, batch processing).
Who's Luna?
Luna Sutian — a developer in Vietnam who likes making web tools. Reach out at sutianer0000@gmail.com.