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API & MCP

MIDI Inspector

Every note, inspected. Open and play .mid/.midi files from any web page.

As of June 2026, MIDI Inspector has 10 users in the Productivity category.

jsl+Productivity
Chrome Web Store ↗.crx
Usersno change0%
10
10
Ratingno change0%
—
— reviews
Reviewsno change0%
—
Version
0.3.1
Manifest V3

History

6 snapshots

Tracking since May 11, 2026.

11.6472.3599999999999994May 11, 2026Jun 11, 2026
View as table
DateUsersRatingReviewsVersion
May 11, 2026———0.3.1
May 16, 2026———0.3.1
May 22, 20263——0.3.1
May 29, 20268——0.3.1
Jun 5, 202610——0.3.1
Jun 11, 202611——0.3.1
Now10——0.3.1

Permissions & access

Permissions
contextMenusdownloads
Host access
<all_urls>

Screenshots

MIDI Inspector screenshot 1MIDI Inspector screenshot 2MIDI Inspector screenshot 3MIDI Inspector screenshot 4

About

MIDI Inspector turns your browser into a full MIDI viewer and player.

  Right-click any .mid or .midi link → "Open in MIDI Inspector" and the
  file plays instantly with the bundled MuseScore_General SoundFont.
  Drop your own .mid/.sf2/.sf3 files in too.

  FEATURES
  • Piano Roll with measure/beat ruler and locate-playhead
  • Per-track mute/solo and per-channel filter
  • Chord analysis, tempo curve, velocity view, raw protocol inspector
  • Drag-and-drop .mid files or right-click links on any page
  • 8 languages: English, Español, Français, 简体中文, 繁體中文,
    日本語, Tiếng Việt, Русский
  • Light and dark themes
  • Bundled GM-compatible SoundFont (~40 MB) — works offline
  • Load your own .sf2 / .sf3 / .dls SoundFont anytime

  PRIVACY
  Everything runs locally in your browser. No telemetry, no analytics,
  no uploads. The <all_urls> permission is used only to fetch the
  specific MIDI URL you chose to open. Full policy:
  https://midi.jsl.plus/privacy

Technical

Version
0.3.1
Manifest
V3
Size
34.27MiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
fagpjhjgeocnnacjfhhengecnecpiadg
Developer ID
u982d74c5097e09b4b08c566b73b29429
Developer Email
[email protected]
Created
May 10, 2026
Last Updated (Store)
May 10, 2026
Last Scraped
Jun 11, 2026
Website
—
Support URL
—

Data sourced from the Chrome Web Store · last verified Jun 11, 2026.