Specialty Converters
Niche format conversions that don't fit the mainstream categories — 3D mesh formats for makers, font conversions and subsetting for web/print, and Unix epoch batch processing for log analysis. All offline, no upload limits, no subscription fees on top of the main app.
3D mesh converter
Convert between 3D mesh formats: STL (3D printing standard), OBJ (Wavefront, widely supported), PLY (research/scanning), 3MF (Microsoft 3D Manufacturing), GLB / GLTF (real-time / WebGL), FBX (animation, when license allows). Optional mesh simplification (decimate to N triangles) for game assets or web display. Useful for 3D printing prep, working with scan data, or game-engine asset pipeline.
Where in the app: Tools → Convert & Format → 3D meshes → Mesh converter
Font format converter
Convert between TTF, OTF, WOFF, WOFF2, EOT, SVG fonts. WOFF2 is the modern web-font format (best compression); TTF/OTF for desktop installation; EOT for legacy IE compatibility. Useful for getting a downloaded TTF onto your website, or producing the multiple formats a web font kit needs.
Where in the app: Tools → Convert & Format → Fonts → Font format converter
Font subsetting
Strip unused glyphs from a font to shrink the file. A Latin-only subset of a font with full Unicode coverage might shrink from 800 KB to 30 KB. Configurable: include only specific Unicode ranges, or only the characters used in a sample text. Critical for web font performance — every KB on the critical path matters.
Where in the app: Tools → Convert & Format → Fonts → Font subset
Font specimen sheet
Generate a printable specimen sheet for any font — uppercase alphabet, lowercase, digits, common symbols, sample paragraphs at multiple sizes. Useful for evaluating a font before licensing it, building a font portfolio, or producing reference sheets for a graphic design course.
Where in the app: Tools → Convert & Format → Fonts → Font specimen sheet
Epoch batch converter
Convert a column of Unix timestamps (seconds, milliseconds, or microseconds) to human-readable dates in bulk. Paste a CSV column, hit Convert, get the human dates next to the epochs. Useful for log analysis — when an exported log has epoch timestamps and you need to read what time each event happened.
Where in the app: Tools → Convert & Format → Epoch batch
Questions and answers
Why are these grouped together?
They're all "specialty" conversions — used by specific audiences (3D printing community, web developers, log analysts) rather than mainstream needs. Grouping them keeps the dedicated pages focused on broader-audience tools.
STL vs OBJ vs GLB — which 3D format when?
STL for 3D printing (most slicers accept STL natively). OBJ for general interchange (almost universal, but text-based and larger). GLB for real-time / web — compressed binary GLTF, best for displaying meshes in browsers or game engines.
How much does font subsetting shrink files?
Depends on the source. A full Google-quality font (with many language scripts) shrinks 80-95% when subset to Latin-only. A font that's already Latin-only shrinks much less. The tool shows before/after sizes.
Can I subset a font for use on the web?
Yes — that's the primary use case. Subset to your site's used Unicode ranges, convert to WOFF2, serve from your CDN. Page load improves dramatically vs serving the full font.
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