Add your JSON file
Drop one or more .json 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.
Restructuring .json data as .pot changes the serialization without touching the values themselves. 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.Restructuring .json data as .pot changes the serialization without touching the values themselves. A .json file holds JavaScript Object Notation: nested objects, arrays, strings, numbers, booleans, and null written in a strict text syntax. It is the default data language of the web — most APIs speak nothing else.
A .pot file is a gettext Portable Object Template: the same grammar as a .po file, but with every msgstr deliberately empty. It is the extraction output — the list of every translatable string found in a codebase — from which each language's .po file is created and later merged. For this route the practical draw is one canonical source of truth for what is translatable and carries source references, so a string can be traced back to the line that produced it — balanced against contains no translations, so it is easy to mistake an empty catalog for a broken one, which is worth knowing before you commit a large batch.
The practical trigger for this conversion is usually a mismatch: with .json, no comments — a perpetual annoyance for configuration files. Switching to .pot buys you one canonical source of truth for what is translatable, which is why it is the better fit for handing a complete string inventory to translators or a translation vendor. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
| Aspect | JSON data (.json) | GNU gettext template (.pot) |
|---|---|---|
| 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 | exactly six value types; no dates, no comments, no trailing commas — the strictness is deliberate | syntactically identical to .po; the difference is semantic — msgstr values are empty by definition |
| Strongest at | rEST and HTTP API request and response payloads | handing a complete string inventory to translators or a translation vendor |
| Weak spot | no comments — a perpetual annoyance for configuration files | contains no translations, so it is easy to mistake an empty catalog for a broken one |
Drop one or more .json 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 .pot in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if POT is selectable, the route is real and validated.
Press Convert. The restructuring is plain local parsing — your data is never posted to a server for processing.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid POT file. Outputs keep the original filename with the .pot extension.
There is no visual quality to lose — json is text-oriented and pot 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 .json file is processed inside your browser tab and never uploaded. The restructuring is plain local parsing — your data is never posted to a server for processing. Close the tab and the file is gone from memory.
Any tool that reads .po reads .pot, since the grammar is the same. Novus Convert converts templates to and from the other localization formats and preserves the empty-target semantics — a template converted to XLIFF arrives with empty targets rather than targets echoing the source, which is what makes it still usable as a template.
It depends on the content: syntactically identical to .po; the difference is semantic — msgstr values are empty by definition. Convert one representative file first and compare before batch-processing a large set.