opentype.js
A JavaScript library for reading and writing OpenType font files
- Also known as
- opentype-js
What is opentype.js?
A library that enables working with OpenType font files in JavaScript, supporting multiple font formats (WOFF, OTF, TTF) and advanced typographic features including kerning, ligatures, color glyphs, and variable fonts.
opentype.js pricing
We don't have opentype.js's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What opentype.js does
The capabilities that matter for font tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Deployment model
- -
- Auto activation in adobe sketch affinity
- -
- Duplicate font conflict resolution
- -
- Dynamic os level font deactivation
- -
- Enterprise license compliance tracking
- -
- Google fonts google cloud sync
- -
- Advanced glyph and opentype inspection
- ✓
- Team based role access control RBAC
- -
- Adobe fonts formerly typekit sync
- -
- Missing font replacement suggestions
- -
- SOC2 type ii
- -
- ISO 27001
- -
- Pricing model
- One time perpetual license
Platform & deployment
Independently observed- Web
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
opentype.js FAQ
Common questions about opentype.js, answered from independent, dated evidence.
What is opentype.js?
A library that enables working with OpenType font files in JavaScript, supporting multiple font formats (WOFF, OTF, TTF) and advanced typographic features including kerning, ligatures, color glyphs, and variable fonts. It is indexed under Font Tools.
Source: https://opentype.js.org
What platforms does opentype.js support?
opentype.js supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://opentype.js.org
Is opentype.js open source?
Yes. opentype.js is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
opentype.js alternatives
Other font tools we track, ranked by the same independent score.
- FontBaseA free, elegant font management tool for design professionalslow · 30%
- RightFontFont management solution for macOSlow · 30%
- TypefaceA macOS font manager for organizing and activating fonts in design worklow · 39%
- Extensis ConnectCentralized platform for managing and licensing fonts across teams and workflowslow · 26%
- High-Logic MainTypeA professional font manager for Windows that simplifies organizing, previewing, and managing typeface collectionslow · 26%
Compare opentype.js
Side by side against other font tools, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for opentype.js, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Dependent projects | 68 | 0.06 | 4.3 | ✓ |
| Release cadence | 80 | 0.05 | 4.2 | ✓ |
| Capabilities | 29 | 0.07 | 2.0 | ✓ |
| Stars | 70 | 0.03 | 1.8 | ✓ |
| Security score | 41 | 0.04 | 1.7 | ✓ |
| Integrations | 0 | 0.08 | 0.0 | - |
| Development activity | 0 | 0.09 | 0.0 | ✓ |
| Security posture | 0 | 0.06 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 0 | mediumsource · 2026-10-15 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 3 items | mediumsource · 2026-09-10 · 72% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Pricing model: one_time_perpetual_license · Advanced glyph and opentype inspection: Yes | mediumsource · 2026-10-15 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | JavaScript | highsource · 2026-10-15 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-10-15 · 95% |
Pricing
Release
Security
Is opentype.js the right choice for you?
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