Add your MD file
Drop one or more .md 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 .md to .json rewrites the document's markup while keeping its readable content intact. 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 .md to .json rewrites the document's markup while keeping its readable content intact. A .md file is a Markdown document: plain text with lightweight conventions — # for headings, ** for bold, - for lists — that convert cleanly to HTML. It stays readable as raw text, which was the entire point of the design.
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. For this route the practical draw is parsers ship in the standard library of essentially every language and readable by humans and machines alike — balanced against no comments — a perpetual annoyance for configuration files, which is worth knowing before you commit a large batch.
The practical trigger for this conversion is usually a mismatch: with .md, dialect fragmentation: tables, footnotes, and highlights differ per flavor. Switching to .json buys you parsers ship in the standard library of essentially every language, which is why it is the better fit for rEST and HTTP API request and response payloads. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
| Aspect | Markdown document (.md) | JSON data (.json) |
|---|---|---|
| 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 | inline HTML is legal Markdown, providing an escape hatch for anything the lightweight syntax lacks | exactly six value types; no dates, no comments, no trailing commas — the strictness is deliberate |
| Strongest at | rEADME files and documentation in code repositories | rEST and HTTP API request and response payloads |
| Weak spot | dialect fragmentation: tables, footnotes, and highlights differ per flavor | no comments — a perpetual annoyance for configuration files |
Drop one or more .md 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 .json in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if JSON is selectable, the route is real and validated.
Press Convert. Parsing and rewriting run in local JavaScript with sanitization, so scripts and trackers are stripped along the way.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid JSON file. Outputs keep the original filename with the .json extension.
There is no visual quality to lose — md is text-oriented and json 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 .md file is processed inside your browser tab and never uploaded. Parsing and rewriting run in local JavaScript with sanitization, so scripts and trackers are stripped along the way. Close the tab and the file is gone from memory.
Browsers parse it natively through JSON.parse, every mainstream language bundles support, and most editors validate and highlight it out of the box. Viewing a raw .json file is possible in any text editor or browser tab.
It depends on the content: exactly six value types; no dates, no comments, no trailing commas — the strictness is deliberate. Convert one representative file first and compare before batch-processing a large set.