Add your TOML file
Drop one or more .toml files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
TOML to YML
Converting a .toml font to .yml repackages the same glyphs and metrics for a different delivery target. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop TOML files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting TOML configuration to YAML data
Converting a .toml font to .yml repackages the same glyphs and metrics for a different delivery target. A .toml file is a configuration format designed to map unambiguously to a hash table: key/value pairs grouped under bracketed section headers, with real types for strings, integers, floats, booleans, dates and arrays. It aims to be obvious to a human reading it, which is what separates it from JSON and YAML.
.yml is simply the three-letter spelling of the YAML extension — the contents are ordinary YAML in every respect. It became entrenched because early adopters favored terse extensions, and flagship filenames like docker-compose.yml and .travis.yml cemented the habit. For this route the practical draw is fully interchangeable with .yaml — a rename is the whole migration and matches the default filenames that many popular tools generate — balanced against mixed extensions across one codebase complicate tooling and glob rules, which is worth knowing before you commit a large batch.
Why convert TOML to YML?
The practical trigger for this conversion is usually a mismatch: with .toml, deeply nested structures become verbose and hard to follow. Switching to .yml buys you fully interchangeable with .yaml — a rename is the whole migration, which is why it is the better fit for docker-compose.yml service definitions. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
TOML vs YML at a glance
| Aspect | TOML configuration (.toml) | YAML data (.yml) |
|---|---|---|
| Format type | Text-based — characters and structure, so there is no visual quality loss | Text-based — characters and structure, so there is no visual quality loss |
| How it stores data | types are explicit and inferred from syntax: quoted strings, bare integers, floats, booleans, and RFC 3339 datetimes | there is no format difference from .yaml whatsoever; parsers never inspect the extension |
| Strongest at | application and build configuration where a human edits the file by hand | docker-compose.yml service definitions |
| Weak spot | deeply nested structures become verbose and hard to follow | mixed extensions across one codebase complicate tooling and glob rules |
Pick YML as the output
Select .yml in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if YML is selectable, the route is real and validated.
Convert on your device
Press Convert. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid YML file. Outputs keep the original filename with the .yml extension.
TOML to YML questions, answered
Will converting TOML to YML lose quality?
There is no visual quality to lose — toml is text-oriented and yml is text-oriented, so the question is structural fidelity. Text, ordering, and basic structure are preserved; complex layout, embedded objects, and styling beyond the target's model are simplified.
Is it private to convert TOML files here?
Yes — the .toml file is processed inside your browser tab and never uploaded. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip. Close the tab and the file is gone from memory.
Where will the YML file work?
Anything that reads .yaml reads .yml identically, from language libraries to editor plugins. The only compatibility question is which spelling a given tool looks for by default when discovering config files.
Will the YML file be bigger or smaller than my TOML?
It depends on the content: there is no format difference from .yaml whatsoever; parsers never inspect the extension. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my TOML file?
In .toml, none. Comments are not carried into other formats, and no format here has a comment channel to receive them. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.