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LookStuffUp - Instant definitions, translations & summaries

Chrome extension by Vibhor Singh · Productivity · Tools

  • Featured
  • Established publisher

A Chrome extension in Productivity · Tools with 40 users, barely installed. Audience over the last 30 days: +4.

Specific sites only: 12 match patterns.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
40
Rating
5.0 (4 ratings)
Users, last 30 days
+4
Rating, last 30 days
Steady over 30 days
Version
2.0.1
Updated in the store
2026-10-23
Published
2025-06-29
Manifest
V3
Browser access
5 permissions, 12 site patterns

How it has moved

Users
+4 since 02.10
36-42 · 15 readings
2026-10-14: released 2.0.02026-10-14: gained the good publisher record badge2026-10-23: released 2.0.1
  1. 2026-10-0438
  2. 2026-10-0840
  3. 2026-10-0941
  4. 2026-10-1039
  5. 2026-10-1641
  6. 2026-10-1740
  7. 2026-10-1841
  8. 2026-10-2042
  9. 2026-10-2141
  10. 2026-10-2240
  11. 2026-10-2442
  12. 2026-10-2539
  13. 2026-10-2937
  14. 2026-10-3041
  15. 2026-11-0140
Rating
unchanged since 02.10
reviewsrating 5.00 · 15 readings
2026-10-14: released 2.0.02026-10-14: gained the good publisher record badge2026-10-23: released 2.0.1
  1. 2026-10-04reviews4rating5.00
  2. 2026-10-08reviews4rating5.00
  3. 2026-10-09reviews4rating5.00
  4. 2026-10-10reviews4rating5.00
  5. 2026-10-16reviews4rating5.00
  6. 2026-10-17reviews4rating5.00
  7. 2026-10-18reviews4rating5.00
  8. 2026-10-20reviews4rating5.00
  9. 2026-10-21reviews4rating5.00
  10. 2026-10-22reviews4rating5.00
  11. 2026-10-24reviews4rating5.00
  12. 2026-10-25reviews4rating5.00
  13. 2026-10-29reviews4rating5.00
  14. 2026-10-30reviews4rating5.00
  15. 2026-11-01reviews4rating5.00
Users
-8 since 31.08
36-59 · 28 readings
2026-10-14: released 2.0.02026-10-14: gained the good publisher record badge2026-10-23: released 2.0.1
  1. 2026-08-3148
  2. 2026-09-0254
  3. 2026-09-0356
  4. 2026-09-0459
  5. 2026-09-0753
  6. 2026-09-0851
  7. 2026-09-0948
  8. 2026-09-1045
  9. 2026-09-1343
  10. 2026-09-1544
  11. 2026-09-1640
  12. 2026-09-2138
  13. 2026-09-2836
  14. 2026-10-0438
  15. 2026-10-0840
  16. 2026-10-0941
  17. 2026-10-1039
  18. 2026-10-1641
  19. 2026-10-1740
  20. 2026-10-1841
  21. 2026-10-2042
  22. 2026-10-2141
  23. 2026-10-2240
  24. 2026-10-2442
  25. 2026-10-2539
  26. 2026-10-2937
  27. 2026-10-3041
  28. 2026-11-0140
Rating
unchanged since 31.08
reviewsrating 5.00 · 28 readings
2026-10-14: released 2.0.02026-10-14: gained the good publisher record badge2026-10-23: released 2.0.1
  1. 2026-08-31reviews4rating5.00
  2. 2026-09-02reviews4rating5.00
  3. 2026-09-03reviews4rating5.00
  4. 2026-09-04reviews4rating5.00
  5. 2026-09-07reviews4rating5.00
  6. 2026-09-08reviews4rating5.00
  7. 2026-09-09reviews4rating5.00
  8. 2026-09-10reviews4rating5.00
  9. 2026-09-13reviews4rating5.00
  10. 2026-09-15reviews4rating5.00
  11. 2026-09-16reviews4rating5.00
  12. 2026-09-21reviews4rating5.00
  13. 2026-09-28reviews4rating5.00
  14. 2026-10-04reviews4rating5.00
  15. 2026-10-08reviews4rating5.00
  16. 2026-10-09reviews4rating5.00
  17. 2026-10-10reviews4rating5.00
  18. 2026-10-16reviews4rating5.00
  19. 2026-10-17reviews4rating5.00
  20. 2026-10-18reviews4rating5.00
  21. 2026-10-20reviews4rating5.00
  22. 2026-10-21reviews4rating5.00
  23. 2026-10-22reviews4rating5.00
  24. 2026-10-24reviews4rating5.00
  25. 2026-10-25reviews4rating5.00
  26. 2026-10-29reviews4rating5.00
  27. 2026-10-30reviews4rating5.00
  28. 2026-11-01reviews4rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 12 match patterns.

  • https://*.huggingface.co/*
  • https://*.hf.co/*
  • https://cdn.jsdelivr.net/*
Show the remaining 9
  • https://www.googleapis.com/*
  • https://api.duckduckgo.com/*
  • https://*.wikipedia.org/*
  • https://*.wiktionary.org/*
  • https://api.dictionaryapi.dev/*
  • https://api.datamuse.com/*
  • https://freedictionaryapi.com/*
  • https://export.arxiv.org/*
  • https://arxiv.org/*
  • See the address and title of every tab you have open tabs
  • Add items to the right-click menu contextMenus
  • Run work in a hidden page offscreen
Show the remaining 2

The full permission history for this extension

Version history

  1. Version 2.0.1 · Asked for more permissions (17, was 12) (changed: site access, browser permissions, optional permissions)
  2. Version 2.0.0 · Asked for more permissions (12, was 6) (changed: site access, browser permissions)

What changed recently

  1. Package size changed
  2. Asked for more permissions (17, was 12) (changed: site access, browser permissions, optional permissions)
  3. Supported languages changed (1 → 22)
Show the remaining 7
  1. Released version 2.0.1 (was 2.0.0)
  2. Package size changed
  3. Asked for more permissions (12, was 6) (changed: site access, browser permissions)
  4. Store description rewritten (94 → 125 characters)
  5. Gained the Established publisher badge
  6. Renamed from "LookStuffUp — Instant definitions, translations & AI summaries" to "LookStuffUp - Instant definitions, translations & summaries"
  7. Released version 2.0.0 (was 1.7.0)

The publisher

Vibhor Singh publishes 2 listings we track, 50 users between them. Listed website: vibhorsingh.com.

  1. RepoTree Vibhor Singh · Productivity · Tools · published 2025-11-08 10 users ★ 5.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. Askly – AI Chrome Extension to Define, Explain & Summarize Text Describes nearly the same job, smaller audience 3 users (last published figure)
  2. that what? Describes nearly the same job, smaller audience 6 users
  3. Knowledge Tooltip Describes nearly the same job, smaller audience 3 users
  4. WikiPeek — Instant Wikipedia Previews Anywhere Describes nearly the same job, smaller audience 20 users ★ 5.0
  5. AI Helper Describes nearly the same job, smaller audience 5 users (last published figure)

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

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HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built