Developer Tools

Optimizely Assistant

Debug your Optimizely experiments with useful JavaScript console logging and powerful caching and snippet injection options.

View Chrome Web Store

Time on the storeAbout 3 years or moreA rough range, not an exact date

Store users≈6KRounded by the Chrome Web Store

Chrome Web Store rating3.7 / 53 ratings on the Chrome Web Store

Last store update17 Apr 2025Version 3.1.2, 18 months ago

Inside the extension

Optimizely Assistant developer product preview 1

Product image 1 of 2

Reviews

Alex Merrick14 months ago
Defintely made for devs, took me quite a few tries and reading the store page description to understand what it does and how it does it's working well for dev purposes at the moment.
Mike Deverell7.9 years ago
As an engineer, I had this installed for years and never actually used it. It has a lot of features that I never use, and lacks the one feature that I need a lot: the ability to select which variations I'm in. So, I'm finally just uninstalling this extension. There's another extension in the Chrome Web Store with twice as many users that *does* allow you to easily choose your variation, so I use it instead. I won't name it since I'm not here to advertise for it, but I hate having to use a 3rd-party extension and will reinstall this official one instead in the event that they implement a way to easily change between variations.
Tom Fuertes9.3 years ago
This is hugely helpful for developing our AB Tests. 1. JS console logs that include active Pages, A/B tests and Personalization campaigns you're in. 2. Use a non-cached version of the snippet to always fetch the latest data so you don't have to wait for a snippet refresh with changes when editing/QA'ing. 3. Easy way to add/remove a test cookie 4. Can swap snippets out or inject one on a page. Could be useful as you pitch new clients or work out of different demo accounts.

Reviews

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Permissions & access

Access levelHigh

Can read and change every website you visit.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 11

Sensitive6

Read and change data on every website<all_urls>
Read and change site cookies, including loginscookies
Ask for your Google account sign-inidentity
See the address and title of every open tabtabs
Follow every page you openwebNavigation
Watch the web traffic your browser sendswebRequest

Members also see when a new version asks for new access.

Website access All

All websites

Extension ID: hkmpnondmidmfdlaphahbalnmphelnfo
Package size: 515KiB
Manifest: Version 3

The maker

Optimizely has 2 listings on the store. Updates most of their listings often.

Listings: 2
Combined store users: ≈6.1K
Store Featured: 0
Updated in the last 90 days: 1 of 2

Optimizely Web Companion129 users · updated 25 days ago

Combined users can count the same person more than once. See all 2 listings

Ext Watch AI

Should you build in this niche?

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One research report for Optimizely Assistant. Reports come with Plus, Pro and Max.

Takeaway & demandCited takeaway and search volumes
Traffic & domainPopularity rank, visits and authority
Money & pricingPlans and prices from the maker’s site
ReviewsComplaints and praise, quoted
Competitors & ranksRank against the closest listings
Build opportunityWhat to build and how to position it

Every number shows its source and date
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Report and PDF yours for 30 days

Optimizely Assistant

Inside the extension

Reviews

Reviews

Permissions & access

Permissions 11

Sensitive6

Website access All

The maker

Should you build in this niche?

Reviews

Tag Assistant

Web Data Assistant

Assistant RGAA

Inside the extension

Reviews

Reviews

Competitors

Tag Assistant

Web Data Assistant

Assistant RGAA

Permissions & access

Permissions 11

Sensitive6

Website access All

The maker

Should you build in this niche?

Reviews

Tag Assistant

Web Data Assistant

Assistant RGAA