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Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF

v2.1.0

by Themeisle · updated 5 days ago

Unlimited automatic image optimization for WordPress. Compress images, convert to WebP, and improve site speed without losing image quality.

AVIFcompress imagesimage optimizationoptimize imageswebp
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#454
No change0 vs yesterday
Active installs (est.)
≈ 110,000
100K+ reported · Low
Total downloads
2.4M
2,371,332 all-time
Rating
4.4/5
132 reviews
Support resolved
100%
1 of 1 threads, last 2 months
Declining·Downloads -53.3% (30d)·Toward 90K+ · ETA ~11d

Robin Image Optimizer at a glance

Robin Image Optimizer is a WordPress plugin by Themeisle with 100K+ active installs, the #454 most popular plugin on WordPress.org. On a typical day it’s downloaded about 554 times, 53% fewer than the month before. It’s rated 4.4 out of 5 from 132 reviews. Version 2.1.0 came out on Nov 3, 2026 and is tested up to WordPress 7.1.4. Among the 143 plugins tagged “AVIF”, it ranks #3. It was first released in 2018.

Chart time range

Applies to every chart below. History from Oct 9, 2026, 31 days.

Showing the last 30 days. Full history comes with any paid plan.See plans

Downloads over time

Download stats

42.6K downloads · the last 30 days

Downloads over time
Robin Image Optimizer Compare series
Downloads over time: 30 days across 1 series.05K10K15KOct 9Oct 14Oct 19Oct 24Oct 28Nov 2Nov 7Oct 29, 2026: Tested up to 7.1.4
View as table
DateRobin Image Optimizer
Nov 7, 2026856
Nov 6, 20261,346
Nov 5, 20261,694
Nov 4, 20262,245
Nov 3, 202614,131
Nov 2, 20268,774
Nov 1, 2026364
Oct 31, 2026300
Oct 30, 2026517
Oct 29, 2026550
Oct 28, 2026557
Oct 27, 2026498
Oct 26, 2026545
Oct 25, 2026360
Oct 24, 2026398
Oct 23, 2026704
Oct 22, 20261,055
Oct 21, 2026804
Oct 20, 2026510
Oct 19, 2026597
Oct 18, 2026305
Oct 17, 2026302
Oct 16, 2026471
Oct 15, 2026657
Oct 14, 2026604
Oct 13, 2026696
Oct 12, 2026763
Oct 11, 2026436
Oct 10, 2026489
Oct 9, 20261,031

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 114,792 · -1.4% in the last 30 days

Estimated installs
Estimated installs: 30 days across 2 series.115K116KOct 9Oct 14Oct 19Oct 24Oct 29Nov 3Nov 8Oct 29, 2026: Tested up to 7.1.4
View as table
DateApproximate, from band changesEstimated installs
Nov 8, 2026–114,792
Nov 7, 2026–114,710
Nov 5, 2026–115,155
Nov 4, 2026–116,092
Nov 3, 2026–116,110
Nov 2, 2026–115,924
Nov 1, 2026–115,993
Oct 31, 2026–115,817
Oct 30, 2026–115,817
Oct 29, 2026–115,677
Oct 28, 2026–115,901
Oct 27, 2026116,540116,540
Oct 26, 2026116,532–
Oct 25, 2026116,524–
Oct 24, 2026116,517–
Oct 23, 2026116,509–
Oct 22, 2026116,501–
Oct 21, 2026116,493–
Oct 20, 2026116,485–
Oct 19, 2026116,477–
Oct 18, 2026116,470–
Oct 17, 2026116,462–
Oct 16, 2026116,454–
Oct 15, 2026116,446–
Oct 14, 2026116,438–
Oct 13, 2026116,430–
Oct 12, 2026116,423–
Oct 11, 2026116,415–
Oct 10, 2026116,407–
Oct 9, 2026116,399–

Rank over time

#454 · down 2 in the last 30 days

Popular rank
Popular rank: 14 days across 1 series.#451#452#453#454Oct 16Oct 27Oct 31Nov 4Nov 8Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 8, 2026#454
Nov 7, 2026#454
Nov 6, 2026#454
Nov 5, 2026#454
Nov 4, 2026#452
Nov 3, 2026#451
Nov 2, 2026#452
Nov 1, 2026#452
Oct 31, 2026#452
Oct 30, 2026#452
Oct 29, 2026#452
Oct 28, 2026#452
Oct 27, 2026#452
Oct 16, 2026#452

Growth %

Average -0.05% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 29 days across 2 series.-0.5%0%0.5%Oct 10Oct 15Oct 20Oct 24Oct 29Nov 3Nov 8
View as table
DateApproximate, from band changesGrowth
Nov 8, 2026–+0.07%
Nov 7, 2026–-0.19%
Nov 5, 2026–-0.81%
Nov 4, 2026–-0.02%
Nov 3, 2026–+0.16%
Nov 2, 2026–-0.06%
Nov 1, 2026–+0.15%
Oct 31, 2026–0.00%
Oct 30, 2026–+0.12%
Oct 29, 2026–-0.19%
Oct 28, 2026–-0.55%
Oct 27, 2026+0.01%–
Oct 26, 2026+0.01%–
Oct 25, 2026+0.01%–
Oct 24, 2026+0.01%–
Oct 23, 2026+0.01%–
Oct 22, 2026+0.01%–
Oct 21, 2026+0.01%–
Oct 20, 2026+0.01%–
Oct 19, 2026+0.01%–
Oct 18, 2026+0.01%–
Oct 17, 2026+0.01%–
Oct 16, 2026+0.01%–
Oct 15, 2026+0.01%–
Oct 14, 2026+0.01%–
Oct 13, 2026+0.01%–
Oct 12, 2026+0.01%–
Oct 11, 2026+0.01%–
Oct 10, 2026+0.01%–

Active installs band

100K+ on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 14 days across 1 series.95K100K105KOct 16Oct 27Oct 31Nov 4Nov 8Oct 29, 2026: Tested up to 7.1.4
View as table
DateDaily snapshot
Nov 8, 2026100K+
Nov 7, 2026100K+
Nov 6, 2026100K+
Nov 5, 2026100K+
Nov 4, 2026100K+
Nov 3, 2026100K+
Nov 2, 2026100K+
Nov 1, 2026100K+
Oct 31, 2026100K+
Oct 30, 2026100K+
Oct 29, 2026100K+
Oct 28, 2026100K+
Oct 27, 2026100K+
Oct 16, 2026100K+

Search rankings

Where it appears in WordPress.org search for the searches you track, checked every day.

See where Robin Image Optimizer ranks in search

Track this plugin to check its position for the searches you choose, daily, with an alert when it moves.

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Change log

From our daily snapshot of WordPress.org
  1. So far:Rank #452 → #454
    • Released 2.1.0 (was 2.0.9)
  2. Rank #452 → #454Downloads +155.2%
    • Tested up to 7.1.3 → 7.1.4

Versions in use

Share of active installs on each published version, from WordPress.org.

  • v2.036%
  • v2.121%
  • v1.812%
  • v1.511%
  • Other20%

Rating trend

4.4★★★★★132 reviews · steady in the last 30 days

Requirements & info

Version history
Version
2.1.0
Requires WordPress
6.6
Tested up to
7.1.4
Requires PHP
7.4
First released
Aug 12, 2018
Last updated
Nov 3, 2026
Releases, last 12 months
…

Questions about Robin Image Optimizer

How many websites use Robin Image Optimizer?

Robin Image Optimizer is active on 100K+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #454 most popular plugin on WordPress.org.

How many times has Robin Image Optimizer been downloaded?

2,371,332 times in total since 2018. On a typical day it’s downloaded about 554 times. See download stats

When was Robin Image Optimizer last updated?

Version 2.1.0 came out on Nov 3, 2026 (5 days ago). See every release

Is Robin Image Optimizer compatible with the latest WordPress?

Yes. It’s tested up to WordPress 7.1.4, the current version.

Does Robin Image Optimizer have known security vulnerabilities?

None that affect the current version. WPVulnerability’s database lists 4 older issues, fixed in earlier versions, so keep Robin Image Optimizer up to date. See its security record

Is Robin Image Optimizer still maintained?

Yes. Its last release was 5 days ago. Its authors resolved 1 of the 1 support threads opened in the last two months.

What rating does Robin Image Optimizer have?

4.4 out of 5 from 132 reviews on WordPress.org. 83% of them give 5 stars.

What are the best alternatives to Robin Image Optimizer?

The plugins most like Robin Image Optimizer, by the tags they share, are Optimole (200K+), Converter for Media (500K+) and Kraken.io Image Optimizer (10K+). Compare all alternatives

Latest reviews

Analyze reviews
All reviews on WordPress.org

Review stats

4.4

★★★★★

132 reviews

  • 5 stars: 110 reviews, 83%
  • 4 stars: 2 reviews, 2%
  • 3 stars: 3 reviews, 2%
  • 2 stars: 2 reviews, 2%
  • 1 stars: 15 reviews, 11%
Positive
85%4–5★
Mixed
2%3★
Critical
13%1–2★
  • About 3 more 5★ reviews would lift it to 4.5.
  • Each new 1★ review takes 6 five-star reviews to balance out.

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
Robin Image Optimizer
Suggested:
Metric
Robin Image Optimizer
Estimated installs≈ 110,000
Reported installs100K+
Rating4.4
Reviews132
Total downloads2.4M
AuthorThemeisle
First releasedAug 12, 2018
Version2.1.0
Requires WP6.6
Requires PHP7.4
Last updatedNov 3, 2026

Alternatives to Robin Image Optimizer

Compare all alternatives

Popular plugins with the same tags, the most in common first.

Side by side:Robin Image Optimizer vs OptimoleRobin Image Optimizer vs Converter for MediaRobin Image Optimizer vs Kraken.io Image Optimizer

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