RawLens

Pretty-print messy JSON from selections, page elements, clipboard content, and raw pages in Chrome.

RawLens helps developers inspect messy JSON and raw developer output without leaving Chrome. The core workflow is JSON from anywhere: selected text, hovered page elements, clipboard content, page source, page HTML, and raw pages opened directly in the browser. RawLens is especially useful for nested JSON string fields like {"foo":"{\"bar\":1}"}, where normal formatters clean up the outer object but leave the useful inner payload escaped. Highlights: - Pretty-print messy JSON, including nested JSON strings, stack traces, escaped newlines, and copied error payloads. - Inspect JSON from selected text, hovered DOM nodes, clipboard content, raw pages, page source, or page HTML. - Render ANSI terminal colors from CI logs, build logs, and copied command output. - Auto-format source-like files opened directly in Chrome, including YAML, JavaScript, CSS, Markdown, SQL, patch, diff, HTML, XML, and more. - Reopen recent views from a local History panel. - Use quick shortcuts: vv, pp, cc, hh, xx, ff, and Esc. - Works locally in your browser. No server, no tracking, no log collection. Common use cases: - Reading API JSON responses with nested error bodies. - Pretty-printing copied production error logs. - Formatting selected JSON on an internal dashboard, issue page, or incident note. - Inspecting JSON from the clipboard without pasting it into an online formatter. - Viewing raw GitHub/GitLab CI logs with ANSI colors. - Opening YAML, JSON, JavaScript, CSS, Markdown, SQL, patch, and diff files. RawLens is open source and MIT licensed: https://github.com/RawLens/rawlens