Optimizely Alternatives 2026: 5 Options, 4 Free
Optimizely alternatives: GrowthBook, PostHog, Statsig, Amplitude and 1 more. Prices and licenses checked October 25, 2026.
•3 min read•Analytics & BI
Verdict:Optimizely's pricing page shows no numbers and says every plan is individually packaged, so the first step is simply to get a quote and compare it with what the free tools cover. Many teams that leave were paying for a full experimentation suite to run a handful of A/B tests. GrowthBook is the most direct swap if your team can write a little code: the core is MIT-licensed, the cloud Starter plan is free for up to 3 users and 1 project, and the Pro plan is $40 per seat a month. PostHog fits if you also want analytics and replays in the same place, with a free tier of 1M events. Statsig suits engineering-led teams that want flags and tests on one platform; its free Developer plan covers 2 million events. Amplitude is stronger at explaining results than at building tests. VWO is the like-for-like marketer tool but is also quote-only, so it is a price comparison, not a saving. The trade-off is the visual editor: Optimizely and VWO let non-developers change a page, while the free options lean on code or feature flags. If a developer runs your tests, switch. If a marketer runs them without help, keep the editor and negotiate.
Quick comparison
| Tool | Price | Platforms | Best for | Tested |
|---|---|---|---|---|
| GrowthBook | Free (Cloud Starter: up to 3 users, 1 project, unlimited feature flags, experiments and traffic; self-hosted Open Source plan is free for 1 project); paid from $40 per seat/month (Cloud Pro, up to 30 users) | Web browser, Self-hosted | Self-hostable experiments with a free tier | Docs only |
| PostHog | Free (Cloud free tier includes 5k recordings and 1M events a month; self-hosted hobby deploy suits about 100k events a month) | Web browser, Linux (self-hosted, Docker) | Product analytics and tests together | Docs only |
| Statsig | Free (Developer plan: 2 million events a month, unlimited flag and config checks, 50,000 session replays a month, 1 year of analytics retention); paid from $150 per month (Pro; 5 million events included) | Web browser | Engineer-led feature experiments | Docs only |
| Amplitude | Free (2M events per month, unlimited team members) | Web browser | Analysis behind test results | Docs only |
| VWO | See pricing page | Web browser | Marketer-run web tests | Docs only |
| LaunchDarkly | Free (Developer plan: unlimited seats, 100K experimentation MAU a month, unlimited feature flags, 5 service connections); paid from $10 per service connection/month, Foundation (pay as you go, billed yearly, no seat fees) | Web browser | Developer Tools | Docs only |
Independent comparison. Paid placements are labelled separately; editorial links earn no affiliate commissions. Learn more.
Good fit if
- You want a free open source test platform (GrowthBook is the pick)
- You want analytics and tests in one tool (PostHog is the pick)
- Your engineers run feature tests (Statsig is the pick)
- You need deep analysis of test outcomes (Amplitude is the pick)
- Marketers must edit pages without code (VWO is the pick)
Not ideal if
- You rely on Optimizely features or integrations that these tools do not replicate
Optimizely today: See pricing page (Optimizely pricing, checked 2026-10-23).
Why people look for Optimizely alternatives
Optimizely publishes no prices, no free tier and no usage metrics such as MAU or impressions. Its pricing page says only that every plan is individually packaged, and the single call to action is Request a demo. That makes it impossible to estimate cost or compare offers before a sales conversation, and any plan is shaped by what you tell the vendor you need rather than by a list you can check.
GrowthBook
Compared with Optimizely: Open source core under MIT Expat, with a free cloud Starter plan for 3 users and unlimited experiments. Optimizely shows no public prices, while GrowthBook Pro is $40 per seat a month; the visual editor is lighter.
Price: Free (Cloud Starter: up to 3 users, 1 project, unlimited feature flags, experiments and traffic; self-hosted Open Source plan is free for 1 project); paid from $40 per seat/month (Cloud Pro, up to 30 users) (GrowthBook pricing, checked 2026-10-23).
Platforms and license: Web browser, Self-hosted. MIT Expat, with enterprise directories under a separate licence (open source).
Project activity: 8.5k GitHub stars · latest release v5.1.0 (Sep 22, 2026) · last commit Oct 27, 2026
Best for: Self-hostable experiments with a free tier.
Worth knowing: Enterprise plans are custom priced.
PostHog
Compared with Optimizely: Cloud free tier with 1M events a month and a self-hosted MIT option, covering analytics and experiments together. Less polished for marketer-run web tests than Optimizely, but far cheaper to start.
Price: Free (Cloud free tier includes 5k recordings and 1M events a month; self-hosted hobby deploy suits about 100k events a month) (PostHog pricing, checked 2026-10-22).
Platforms and license: Web browser, Linux (self-hosted, Docker). MIT (ee/ directory under a separate licence) (open source).
Project activity: 40.5k GitHub stars · latest release desktop-v0.61.851 (Oct 27, 2026) · last commit Oct 28, 2026
Best for: Product analytics and tests together.
Statsig
Compared with Optimizely: Developer plan is free with 2 million events a month and unlimited flag checks; Pro is $150 a month. Built for engineers running feature tests rather than Optimizely's marketing-led page edits.
Price: Free (Developer plan: 2 million events a month, unlimited flag and config checks, 50,000 session replays a month, 1 year of analytics retention); paid from $150 per month (Pro; 5 million events included) (Statsig pricing, checked 2026-10-23).
Platforms and license: Web browser. Proprietary SaaS.
Best for: Engineer-led feature experiments.
Worth knowing: Extra events on Pro cost $0.05 per 1,000.
Amplitude
Compared with Optimizely: Free plan with 2M events a month and unlimited team members. Strong on analysis of why a test moved a metric, though Optimizely's page-editing focus is not its main strength.
Price: Free (2M events per month, unlimited team members) (Amplitude pricing, checked 2026-10-22).
Platforms and license: Web browser. Proprietary SaaS.
Best for: Analysis behind test results.
VWO
Compared with Optimizely: Closest in purpose to Optimizely with a visual editor for web tests, but its pricing page shows no numbers and the free plan was sunset. Compare quotes rather than expect savings.
Price: See pricing page (VWO pricing, checked 2026-10-23).
Platforms and license: Web browser. Proprietary SaaS.
Best for: Marketer-run web tests.
Other popular options (paid)
LaunchDarkly
Compared with Optimizely: Feature flags first, with experimentation included. The Developer plan is free with 100K experimentation MAU a month; Foundation is pay as you go from $10 per service connection with no seat fees. Optimizely lists no prices at all.
Price: Free (Developer plan: unlimited seats, 100K experimentation MAU a month, unlimited feature flags, 5 service connections); paid from $10 per service connection/month, Foundation (pay as you go, billed yearly, no seat fees) (LaunchDarkly pricing, checked 2026-10-25).
Which one to pick
- You want a free open source test platform: GrowthBook
- You want analytics and tests in one tool: PostHog
- Your engineers run feature tests: Statsig
- You need deep analysis of test outcomes: Amplitude
- Marketers must edit pages without code: VWO
Limits of this review
Docs-only for GrowthBook, PostHog, Statsig, Amplitude, VWO: we did not install or run them, so feature claims come from vendor pages and we did not test import from Optimizely. Vendor prices and free limits change; confirm on the linked pricing page before you buy or migrate.
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Kevin Fan
Kevin Fan is a SaaS founder. He runs Free Instead Of, which tracks free and open-source alternatives to paid software and checks each price and free-plan limit against the vendor's own pages.
Methodology
Based on official pricing and product pages checked between 2026-10-22 and 2026-10-25: Optimizely, GrowthBook, PostHog, Statsig, Amplitude, VWO, LaunchDarkly. Prices, free limits and licenses are the figures shown on those pages on those dates. No tool on this page was installed or run. No accounts were created.