Free online OpenType Collection converter supporting multiple output formats. 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
Scalable at any resolution without quality loss
Supported in web, mobile, and desktop environments
Includes typographic metadata and hinting information
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. Select your target output format and the conversion happens instantly in your browser.
Completely safe. Our converter runs 100% in your browser — your OTC file never leaves your device or touches any server.
Select your file to see all supported output formats for OTC. Most popular formats in the same category are available.
Free, instant, and 100% private. Your files are processed locally in your browser.