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CompressPower
A file conversion and compression service that handles images, PDFs, and documents across nine formats.
Date
Status
completed
Type
Web Application
Technologies Used
CompressPower converts and compresses files across nine formats: JPG, PNG, WebP, BMP, GIF, TIFF, SVG, PDF, and DOCX. It offers dozens of conversion tools and a set of compressors, with the interface available in sixteen languages.
Common image jobs run in the browser through the Canvas API and pdf-lib, so they finish without uploading anything. Heavier work, like DOCX conversion, TIFF handling, PDF rendering, and bitmap-to-SVG vectorization, runs on a separate API service using Sharp, LibreOffice, pdftocairo, and vtracer, with finished files stored on Cloudflare R2.
The codebase is a Bun monorepo: a Next.js 16 web app, a Hono API service, and shared core and database packages. It uses Prisma with PostgreSQL, Redis for caching, Better Auth for accounts, and Stripe for subscriptions.
Highlights
- Nine formats with dozens of convert and compress tools
- Browser-side processing for common image jobs
- Separate Hono API for the heavier server-side engines
- Sixteen-language interface
Challenges
- Most online converters upload every file to a server and wrap the result in ads or tight limits.
Outcomes
- Nine file formats supported
- Browser and server-side processing
- Bun monorepo: Next.js web plus Hono API
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