Polypane
Dutch browser for web developers with synchronised viewports and built-in accessibility audits
Quick Overview
| Company | Firstversionist B.V. |
|---|---|
| Category | Web Browsers |
| Headquarters | The Netherlands |
| Founded | 2019 |
| EU Presence | EU (Netherlands) |
| Data Location | Polypane states that services and data are hosted on DigitalOcean and Amazon Web Services in European data centres; payments are handled by Paddle or Mollie |
| Open Source | No |
| Compliance | KVK 74263404, VAT NL859829765B01 |
| Pricing | Individual EUR 12 per month or EUR 108 per year; Business EUR 16 per seat per month or EUR 144 per seat per year, from 2 to 20 seats; Enterprise on request; prices as shown to a Dutch customer including VAT at the checkout of the pricing page |
| Free Option | 14-day free trial with full access, no credit card needed |
| Replaces | Google Chrome DevTools, Firefox Developer Edition, BrowserStack |
Detailed Review
Polypane is a desktop browser for web developers, designers and QA teams.
Polypane shows a site in many synchronised viewports at once, from mobile screens up to 5K monitors, and combines that with built-in accessibility checks, site quality audits, social media previews and a snippet store. The latest changelog entry, Polypane 31 of 29 September 2026, adds a Canvas layout, improvements to the elements panel, new iPhone presets and Chromium 155. Polypane lists downloads for Windows, Mac and Linux, and a helper extension opens links from a regular browser in Polypane.
Polypane is published by Firstversionist B.V. in the Netherlands, which its terms identify with Chamber of Commerce number KVK 74263404 and VAT number NL859829765B01.
The site footer says Polypane was established in 2019 with no investors and is 100 per cent bootstrapped, and the pricing page presents it as a one-person project run by its founder, Kilian. The privacy policy states that services and data are hosted on DigitalOcean and Amazon Web Services in European data centres, with card payments handled by Paddle or Mollie.
Polypane starts with a 14-day free trial with full access and no credit card. After that the Individual plan costs EUR 12 per month or EUR 108 per year for one person on up to three personal devices, shown including Dutch VAT.
The Business plan costs EUR 16 per seat per month or EUR 144 per seat per year, for 2 to 20 seats with three computers per user, and Enterprise is priced on request with single sign-on and SCIM. Polypane replaces a stack of testing tools in a developer workflow, not a household browser, and it is a poor choice for ordinary browsing.
What Polypane does well
- Many synchronised viewports with accessibility and quality audits built in
- Downloads for Windows, Mac and Linux
- Plain published prices: EUR 12 per month for an individual and EUR 16 per seat for teams
- Dutch B.V. with a KVK number, hosted in European data centres
- 100 per cent bootstrapped, with no investors, according to the vendor
Where Polypane falls short
- No free tier after the 14-day trial
- Built for developers and not meant for everyday browsing
- The pages checked state no open source licence; use is under the vendor terms of service
- The pricing page describes a one-person project, which is a continuity risk for a team tool
Standout feature. Polypane is the European browser built for developers: a founder-run Dutch company that shows every breakpoint at once, with accessibility audits included in a EUR 12 monthly licence.
Pros and Cons
Pros
- Many synchronised viewports with accessibility and quality audits built in
- Downloads for Windows, Mac and Linux
- Plain published prices: EUR 12 per month for an individual and EUR 16 per seat for teams
- Dutch B.V. with a KVK number, hosted in European data centres
- 100 per cent bootstrapped, with no investors, according to the vendor
Cons
- No free tier after the 14-day trial
- Built for developers and not meant for everyday browsing
- The pages checked state no open source licence; use is under the vendor terms of service
- The pricing page describes a one-person project, which is a continuity risk for a team tool
Alternatives to Polypane
Frequently Asked Questions
What is Polypane?
Polypane is a desktop browser for web developers, designers and QA teams.
Polypane shows a site in many synchronised viewports at once, from mobile screens up to 5K monitors, and combines that with built-in accessibility checks, site quality audits, social media previews and a snippet store. The latest changelog entry, Polypane 31 of 29 September 2026, adds a Canvas layout, improvements to the elements panel, new iPhone presets and Chromium 155. Polypane lists downloads for Windows, Mac and Linux, and a helper extension opens links from a regular browser in Polypane.
Where is Polypane based?
Polypane operates from The Netherlands, which places it under EU (Netherlands). Compliance: KVK 74263404, VAT NL859829765B01.
What does Polypane cost?
Individual EUR 12 per month or EUR 108 per year; Business EUR 16 per seat per month or EUR 144 per seat per year, from 2 to 20 seats; Enterprise on request; prices as shown to a Dutch customer including VAT at the checkout of the pricing page. 14-day free trial with full access, no credit card needed.
Who is Polypane best for?
Front-end developers and QA teams who test every breakpoint and accessibility at once. Polypane is the European browser built for developers: a founder-run Dutch company that shows every breakpoint at once, with accessibility audits included in a EUR 12 monthly licence.
What are the drawbacks of Polypane?
No free tier after the 14-day trial. Built for developers and not meant for everyday browsing. The pages checked state no open source licence; use is under the vendor terms of service. The pricing page describes a one-person project, which is a continuity risk for a team tool.
Is Polypane a good alternative to Google Chrome DevTools?
Polypane is built as a European alternative to Google Chrome DevTools: Dutch browser for web developers with synchronised viewports and built-in accessibility audits. It will not be a like-for-like feature match in every respect, so check the review above for where the two genuinely differ before switching.
How does Polypane compare to other Web Browsers tools?
Polypane is one of several European Web Browsers tools we cover. It is most often compared with Google Chrome DevTools, Firefox Developer Edition, BrowserStack.