What's new in QDev.
Every release of the extension and its notes — pulled straight from the source changelog, so it's always exactly what shipped to the stores.
Two new ways to explore documents, an editor-style menu bar, and a fix that
keeps you signed in.
- New Table view: browse an array of objects as a sortable table — click a
column header to sort, double-click a row to jump to it in the tree.
- New Columns view: navigate nested data Finder-style, column by column, with
arrow-key navigation and a detail panel showing each value's type and path.
- New menu bar (File / View / Settings / Help) replaces the view tabs: open and
save files, switch views with ⌘1–⌘6, search every menu command from Help, and
check version and account info in the new About dialog.
- Fixed: the extension no longer shows you as signed out (hiding your Pro
features) a few hours after signing in — your session now renews itself in
the background, and a brief network hiccup can no longer flip you to
signed-out either.
- Fixed: asking "how many match?" on very large documents now returns an exact
count instead of silently undercounting when the result list was truncated.
AI on large documents, smarter recovery from oversized results, and an opt-in
program to help improve query accuracy.
- AI ask and search suggestions now work on large documents. Previously
anything over 64 MB showed "AI query isn't available for very large
documents" — now questions are grounded on a compact structural sample and
queries stream over the file, so even multi-hundred-MB documents are
askable. As always, your data never leaves the device — only field names
and shapes inform the AI.
- Questions whose answers are too large to display (over 25 MB) now return a
bounded preview instead of failing with an error.
- New in settings: optionally share de-identified question + schema data from
your queries to help improve jq accuracy — off by default, with billing
discounts for Pro subscribers who opt in.
- A polished loading screen while large files open.
Initial release.
QDev is a local-first JSON, YAML, and TOON viewer that runs entirely in the tab:
tree view, cmd+K search, schema inference, jq queries, and an interactive graph —
no network access for any of it. An optional AI mode turns a natural-language
question into a jq query; the generated query runs locally against your document.
- Tree, graph, and raw views for JSON/YAML/TOON of any size
- cmd+K fuzzy search across keys and values
- One-click JSON Schema inference
- Run jq queries locally (WebAssembly), plus a SQL view over arrays
- Optional AI "ask" mode: on-device (Chrome built-in, Ollama) or hosted; only a
value-masked schema and your question ever leave the device, never the values
Free for personal use, on Chrome and Firefox. Updates roll out automatically once installed.