Free online OpenType Collection to OpenType Font converter. Files are processed locally in your browser — no uploads, 100% private.
Drop your .OTC file here
or click to browse from your device
100% browser-based — no server uploads, no cloud processing
Free forever — no account or subscription required
Supports batch conversion for multiple files at once
Works on any device — desktop, tablet, and mobile
Results available in seconds — no server queue or wait time
Files are cleared immediately after processing for maximum privacy
OpenType Collection — multiple fonts in one file
OpenType scalable font format
OTF is an industry-standard format with universal support
Source: OpenType Collection — multiple fonts in one file
Output: OpenType scalable font format
100% browser-based processing — files never leave your device
Limited editing options without specialized font tools
Web fonts (woff/woff2) are not suitable for print use
Not all formats support the full Unicode character range
Web font embedding using @font-face CSS
App and UI typographic design
Print and graphic design projects
Brand typography kit distribution
Use WOFF2 for all web font delivery — 30% smaller than WOFF with equal quality
Subset fonts to include only the characters needed for the target language
Include OTF/TTF as a fallback alongside WOFF2 for broader compatibility
Check font licensing carefully before redistributing or converting fonts
Drag & drop your file or click to browse
Files are processed instantly in your browser
Save your converted or processed file
Upload your OTC file using the drop zone above. Your file is instantly converted to OTF format right in your browser — no server upload, no waiting.
Completely. Our converter processes your OTC file 100% in your browser using client-side code. It never leaves your device or touches any external server.
It depends on the formats. Converting from lossless to lossy (e.g. PNG to JPEG) may reduce quality. Converting lossless-to-lossless (e.g. PNG to WebP lossless) preserves all quality.
Free, instant, and 100% private. Your files are processed locally in your browser.