Braceview — JSON, Markdown & CSV Viewer

View JSON as a searchable tree and table, CSV as a sortable grid with column stats, and Markdown with diagrams and math.

Braceview turns JSON, CSV and Markdown pages into a fast, readable viewer — right in your browser. Built for people who work with AI tools and APIs: open an API response, a raw GitHub file or an agent report and read it properly instead of scrolling through raw text. JSON • Collapsible tree with search that filters as you type • JSONPath queries and one-click copy of any path (JSONPath, JavaScript or jq) • Table view for arrays of objects, with CSV copy • Handles JSON Lines, JSON with comments, application/*+json and anti-XSSI prefixes • Code view with folding and syntax highlighting CSV and TSV • Fast table that stays smooth with hundreds of thousands of rows • Sort, search and filter rows • Column statistics: empty and unique counts, min, max, mean, median and a distribution chart • Export the rows you see as JSON, Markdown or CSV Markdown • GitHub-flavored Markdown with tables, task lists and alerts • Mermaid diagrams and KaTeX math • Outline sidebar, find in document, export to HTML JSON inside web pages • Hover a code block that contains JSON on any documentation page and click “View as tree” Private by design • Everything runs locally in your browser. No account, no analytics, no data collection, nothing uploaded. • Turn Braceview off for any site from the toolbar button. Works with pages served as JSON, raw .md/.csv/.tsv files served as plain text (for example on raw.githubusercontent.com) and local files (enable “Allow access to file URLs” in the extension details). Chrome itself downloads files sent as text/csv, so those can't be shown. Braceview is also available as a desktop app for Windows and macOS: https://viveksthul15.github.io/braceview/