JASON (JSON Manager)

What is it A focused side-panel tool for:

• Collecting JSON-like payloads from active pages,
• Storing and organizing snippets in tabs,
• Validating/formatting/minifying content,
• Comparing two payloads with visual diff guidance.

How you use it Three core modes:

• Store:
  • tabbed JSON workspace (edit, search, fold, format, save, download).
• Compare:
  • two JSON fields side by side, run comparison, inspect line/word-level diffs, and confirm perfect matches.
• Capture:
  • run scan on current tab, review results, store or compare selected captures.

Why

• Reduces context switching between devtools, editors, and scratchpads.
• Keeps JSON workflows in one persistent place.
• Improves review speed with inline compare visuals and searchable content.

UI/UX

• Local persistence with fast reopen behavior.
• Light/dark theme support.
• Real-time size/validation feedback.
• Search across workspace content and capture content.
• Scan flow includes user feedback and retry behavior for common tab-readiness timing cases.

Privacy and architecture

• No analytics, no third-party telemetry, no external data transmission.
• Data stays in browser local storage.
• Plain JS architecture with shared source + browser-specific manifests/background scripts.
• Deterministic build pipeline with manifest sync checks.