synthesize

Inspired by science, "synthesize" recolors numbers and letters on webpages to induce synesthesia in the user!

As of June 2026, synthesize has 2 users and a 5.00/5 rating from 2 reviews in the Productivity category.

Usersdown 33.3 percent33.3%
2
2
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
1.8.12
Manifest V3

History

5 snapshots

Tracking since Apr 17, 2026.

3.1620.8399999999999999Apr 17, 2026Jun 8, 2026
View as table
DateUsersRatingReviewsVersion
Apr 17, 202635.0021.8.12
Apr 23, 202635.0021.8.12
Apr 28, 202625.0021.8.12
May 5, 202625.0021.8.12
May 30, 202615.0021.8.12
Now25.0021.8.12

Permissions & access

Permissions
storage
Host access
<all_urls>

Screenshots

synthesize screenshot 1synthesize screenshot 2synthesize screenshot 3

About

By default, it runs on all websites, but you can add/remove any website you want. 

This extension was made with the methodologies of Bor et al. (2014) in mind, where a team of scientists found that by having adults read colored text, they could induce learned grapheme-color synthesia in them, which resultingly increased their IQ by an average of 12 points.

In addition to coloring text on webpages, Synthesize has a "passive drill" option that follows the exact methodology of one of the drills Bor et al. used to train synthesia in subjects. In the study itself, this specific drill is given 20 times per training session for one week. 

Expect regular updates and features added. Support responses will be prompt and user feature recommendations will be followed.

Email jeremykalfus [at] gmail.com or use support feature for discussions, comments, sugguestions, or support.

Technical

Version
1.8.12
Manifest
V3
Size
21.21KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
cjohkbmdjbcbchkoojchlanfpojilcpg
Developer ID
u68434c5d7b9f76b5d8bb3547d052921a
Developer Email
[email protected]
Created
Sep 23, 2025
Last Updated (Store)
Feb 3, 2026
Last Scraped
Jun 8, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 8, 2026.