View OTB files in your browser
Bitmap fonts in an OpenType file, as Linux apps read them since 2019. Open one right here, every size inside. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your font opens on its glyphs pixel by pixel, every one in a grid at its own size.
- Every glyph pixel by pixel • Each size it has
- Type in it as a terminal shows it • 1× to 4×
- Find a glyph by its character, name or code
- Export • Save as TTF, OTB, BDF, PSF or a PNG sheet
About OTB
When Pango, which GNOME and many other Linux apps draw their text with, stopped reading BDF and PCF fonts in 2019, Linux systems began shipping their bitmap fonts as OTB: OpenType files with pixels instead of outlines. FontForge makes them from BDF.
An OTB keeps each size of the font as a strike of pixels in its EBDT and EBLC tables, with an empty glyph table, and the names, character map and metrics any OpenType font has.
Filepeek reads every strike in your browser and shows each glyph on its pixel grid. Type in it on a terminal's colors from 1× to 4×, and save it as a TTF with pixels as squares, BDF to edit it, PSF 2 for the console or a PNG sheet.
OpenType Bitmap Font
.otb
Format
- MIME type
- application/octet-stream
- Made by
- Microsoft and Adobe
Inside the file
- Strikes
- A size each, in EBDT and EBLC
- Outlines
- None, an empty glyph table
- Characters
- An OpenType character map
- Names
- Family, style and more
Opens in every browser
Browsers download OTB files and can't use them on web pages. Filepeek opens them in Chrome, Edge, Firefox and Safari, on computers and phones.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Questions
How do I open an OTB file?
Drop it on this page or choose Peek an OTB. Every glyph shows on its pixels at once, and each size inside has a button above them.
Can I turn an OTB back into a BDF?
Yes. Choose Export, then Save as BDF, for this size or every size, to edit it in a font editor.
Is my file uploaded?
No. The font opens inside your browser and never leaves your device.