Add your QTS file
Drop one or more .qts 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.
Converting a .qts font to .xliff repackages the same glyphs and metrics for a different delivery target. Free, private, and validated — the file never leaves your browser.
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.Converting a .qts font to .xliff repackages the same glyphs and metrics for a different delivery target. A Qt Linguist translation source — catalogued here as .qts — is the XML file a Qt application is translated in: a <TS> document holding <context> groups, each containing <message> elements that pair a <source> string with its <translation>. Qt names these files .ts, which collides with TypeScript, so Novus Convert recognises them by the .qt.ts suffix and files them under .qts to keep the two apart.
A .xliff file is an XLIFF document written with the long extension, most often at version 2.0 — the redesigned OASIS standard in which each translatable string is a unit containing one or more segments, each with its own source and target. The payload matches the .xlf form; the structure is what changed. For this route the practical draw is a much cleaner specification than 1.2, with a genuinely small mandatory core and modules make optional capability explicit instead of implied — balanced against less widely supported than 1.2 despite being the newer standard, which is worth knowing before you commit a large batch.
The practical trigger for this conversion is usually a mismatch: with .qts, the .ts extension collides with TypeScript, which breaks naive tooling constantly. Switching to .xliff buys you a much cleaner specification than 1.2, with a genuinely small mandatory core, which is why it is the better fit for interchange with tooling built against the 2.0 core. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
| Aspect | Qt Linguist TS (.qts) | XLIFF 2.0 (.xliff) |
|---|---|---|
| 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 | the root <TS> element carries a version and the target language; <context> groups messages under a <name>, conventionally the class that contains them | the root xliff element carries srcLang and trgLang, replacing 1.2's source-language and target-language on file |
| Strongest at | translating a Qt or KDE desktop application | interchange with tooling built against the 2.0 core |
| Weak spot | the .ts extension collides with TypeScript, which breaks naive tooling constantly | less widely supported than 1.2 despite being the newer standard |
| Metadata | source strings and translations are preserved, keyed on the source text. Context grouping, source locations, the unfinished/vanished state attribute and numerus plural forms are not represented in flat catalog targets | unit identifiers, source and target text and the declared languages are preserved. Module data — change tracking, glossary entries, translation candidates — and inline markup are not represented in flat key-value targets |
Drop one or more .qts 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.
Select .xliff in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if XLIFF is selectable, the route is real and validated.
Press Convert. The font tables are parsed and rewritten locally with fonteditor-core; glyph outlines, hinting, and kerning survive the trip.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid XLIFF file. Outputs keep the original filename with the .xliff extension.
There is no visual quality to lose — qts is text-oriented and xliff 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.
Yes — the .qts 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.
Support is good in modern translation management systems and patchier in older desktop tools, so 1.2 remains the safer choice when a recipient's capabilities are unknown. Novus Convert parses 2.0 units and segments alongside 1.2 trans-units, refuses documents with a doctype or custom entities, and converts locally to the other nine localization formats.
It depends on the content: the root xliff element carries srcLang and trgLang, replacing 1.2's source-language and target-language on file. Convert one representative file first and compare before batch-processing a large set.
In .qts, source strings and translations are preserved, keyed on the source text. Context grouping, source locations, the unfinished/vanished state attribute and numerus plural forms are not represented in flat catalog targets. 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.
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .qts → .xliff → .qts is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.