Convert OTF to WOFF Online — Browser-Ready Fonts

Convert securely in seconds for web publishing, app packaging, and design workflows.

Drop up to 50 files at once - no install, no sign-up required.

Drop OTF Files Here

20 MB per file Up to 50 files 3 parallel conversions 1 credit per 5 MB

Encrypted EU Servers Auto-delete 1h

How it works

1 · Drop your files
Drag & drop or choose OTF font files. No account required on Free - paid plans unlock bigger batches, higher limits, and priority queues.
2 · We convert securely
Processed on our dedicated servers. Encrypted in transit & at rest. We never store filenames - only file types & sizes for accounting.
3 · Download & auto-delete
Grab your WOFF files in seconds. Files delete automatically after 1 hour. Delete anytime after downloading with one click.

About OTF →

OpenType Font (OTF) was developed jointly by Adobe and Microsoft in the 1990s, combining the best of TrueType and PostScript Type 1 formats. OTF files use cubic Bezier curves (CFF/PostScript outlines) which are preferred by professional typographers for their precision. The format supports advanced typographic features including ligatures, stylistic alternates, small caps, and contextual substitutions.

Learn more: OpenType on Wikipedia

OTF fonts are the standard for professional design work and are fully supported on Windows, macOS, and Linux. They can contain up to 65,536 glyphs, enabling comprehensive language support and extensive alternate character sets. While larger than web-optimized WOFF2, OTF provides the complete font feature set needed for desktop publishing, print design, and as the source format for web font generation.

About WOFF →

WOFF (Web Open Font Format) is a font packaging format developed by Mozilla, Opera, and Microsoft, standardised as a W3C Recommendation in 2012. WOFF wraps TrueType or OpenType font data with zlib (Deflate) compression, producing files roughly 40% smaller than uncompressed TTF or OTF equivalents.

Learn more: WOFF on Wikipedia

While WOFF enjoys 98%+ browser support, its successor WOFF2 (using Brotli compression) achieves an additional 30% size reduction. WOFF remains useful as a fallback format and for environments where WOFF2 support is unavailable. The format preserves all OpenType features, hinting instructions, and variable font axes from the original font.

Frequently Asked Questions

What is OTF and WOFF conversion used for?

Teams convert between OTF and WOFF to match browser support, app requirements, or design workflows. Use this tool when your target platform expects WOFF output.

Does converting OTF to WOFF reduce quality?

For standard font container conversions, glyph quality and character coverage are preserved. If outline conversion is required, results remain visually consistent for normal rendering.

Can I batch convert many font files at once?

Yes. Drop multiple files and run batch conversion in one pass. Limits depend on your tier. See the pricing section for file-size and batch limits.

Should I use OTF to WOFF or OTF to WOFF2?

WOFF2 is usually best for modern web stacks due to smaller payloads. Use OTF to WOFF2 first, and keep WOFF as a compatibility fallback. If you need editable CFF output again, use WOFF to OTF.

Is this converter private and secure?

Yes. Uploads are encrypted in transit and at rest, and files are automatically deleted after 1 hour.

What are the limits for this converter?

Tier	Max File Size	Max Files/Batch	Parallel Processing
Guest/Free	20 MB	50 files	3 at once
Pro	200 MB	1000 files	6 at once

Note: File size limits are specific to this converter. Batch and parallel processing limits apply to all images converters site-wide. See all converter limits →

How are credits calculated for this conversion?

Cost: 1 credit per 5 MB

How it works:

Files up to 5 MB: 1 credit
6-10 MB: 2 credits
11-15 MB: 3 credits
16-20 MB: 4 credits

Example: A 5 MB file = 1 credit. A 95 MB file = 19 credits.

Why per-megabyte? Larger files require more resources (processing, bandwidth, storage).

What are my daily and monthly credit limits?

Credit allocations vary by account tier:

Tier	Daily Limit	Monthly Limit
Guest	100 credits/day	—
Free	100 credits/day	—
Pro	—	12,000 credits/month

Daily credits (Guest & Free tiers) reset every day at midnight UTC. Monthly credits (Pro) reset on your billing cycle date.

Note: With 1 credit per 5 MB, font files under 5 MB cost 1 credit each. Pro users can convert 12,000 font files per month.

Answers at a Glance

Quick answers to common questions.

What's New in OTF to WOFF

Latest improvements to this converter

Last updated February 11, 2026

Feb 11, 2026

Initial release of OTF to WOFF converter.

Need to get more done? Pro starts from $5.

1 GB files 1,000 per batch Priority queue Web + API

See Pricing →

No subscription required.