쿠피 · KOOFY LAB

Koofy Lab — useful apps and practical guides

Koofy is the app and web service brand of Koofy Lab (쿠피랩). Explore Koofy Reader for TXT and EPUB reading, and Koofy Image for photo conversion and compression.

Find the right tool

Use Koofy Reader to read text files and EPUB books saved on your phone. Use Koofy Image on the web to convert HEIC photos to JPG or reduce image sizes before uploading to a blog.

Official product information

These guides are published by Koofy Lab. Check supported formats, limitations and download links before choosing a tool. Contact koofylab@gmail.com for support.

Explore more guides

Koofy Reader — TXT and EPUB reader for iPhone and Android

Import TXT and EPUB files into Koofy Reader, continue from your saved reading position, or listen using your device’s text-to-speech voices.

Koofy Image web — convert HEIC and reduce photo sizes

Koofy Image is a free web tool for converting up to 10 photos to JPG, PNG or WebP and reducing file sizes. No signup is required; photo conversion runs in your browser.

How to read TXT and EPUB files on iPhone or Android

Import a downloaded TXT or EPUB file into Koofy Reader to read it like a book, adjust the text size and return to your saved position.

How to convert iPhone HEIC photos to JPG

If a HEIC photo will not open on another device or upload to a website, converting it to JPG may help. Koofy Image web processes the photo in your browser without uploading it.

How to reduce photo file sizes for a blog

If a high-resolution photo exceeds an upload limit, adjust JPG or WebP quality and image dimensions. Koofy Image web lets you set a target size and inspect the result.