Litmus
Litmus · Boston, Massachusetts, United States · founded 2005
Plans and prices
Litmus Basic
1 full user · unlimited read-only users · 1,000 Email Previews in 100+ clients and devices
Read 2 Oct 2026 · litmus.com
Litmus Plus
For email teams of 2–3 people
Read 2 Oct 2026 · litmus.com
Litmus Core
5 full users · 2,000 Email Previews/month · 500,000 analytics opens/month · 50,000 Personalize impressions/month
Read 2 Oct 2026 · litmus.com
Litmus Basic yearly
1 full user · unlimited read-only users · 1,000 previews · 100+ clients/devices
Read 15 Oct 2026 · litmus.com
Litmus Basic monthly
1 full user · unlimited read-only users · 1,000 previews · 100+ clients/devices
Read 15 Oct 2026 · litmus.com
Litmus Core yearly
5 full users · 2,000 previews/month · 500,000 analytics opens/month · 50,000 Personalize impressions/month
Read 15 Oct 2026 · litmus.com
Litmus Core monthly
5 full users · 2,000 previews/month · 500,000 analytics opens/month · 50,000 Personalize impressions/month
Read 15 Oct 2026 · litmus.com
On the record
- Acquisition news
- Validity announced completion of its Litmus acquisition on April 10, 2025; financial terms were not disclosed.prnewswire.com · read 15 Oct 2026
- Analytics
- Email Analytics reports engagement details including opens, read time, deletion, glances, skims, and geolocation.getapp.com · read 15 Oct 2026
- API
- Litmus offers REST-based APIs for Email Previews and Email Analytics, with access evaluated case by case.docs.litmus.com · read 2 Oct 2026
- API access
- API access is evaluated case by case and prospective users are directed to contact Litmus partners support.docs.litmus.com · read 15 Oct 2026
- Browser requirements
- The web app supports current stable desktop Safari, Chrome, Edge, and Firefox with JavaScript and cookies enabled; tablet and phone browsers are unsupported.help.litmus.com · read 15 Oct 2026
- Builder
- Litmus Builder supports code and visual editors, and emails can be created from templates, from scratch, or imported from cloud storage.litmus.com · read 2 Oct 2026
- Chrome extension
- The Chrome extension previews, personalizes, troubleshoots, and tests emails from local editors or ESP editors.chromewebstore.google.com · read 15 Oct 2026
- Collaboration
- Users can share proofs, collect comments and approvals, and collaborate with stakeholders on rendered email versions.trustradius.com · read 15 Oct 2026
- Company facts
- LinkedIn lists Litmus as privately held, founded in 2005, headquartered in Cambridge, Massachusetts, with 51–200 employees.linkedin.com · read 15 Oct 2026
- Company legal name
- Crunchbase lists the legal name as Litmus Software, Inc.crunchbase.com · read 15 Oct 2026
- Compliance
- The Trust Center states that the Litmus SaaS product is included in Validity’s ISO certification and reports that Litmus’s annual SOC 2 Type II audit completed with no exceptions.trust.validity.com · read 2 Oct 2026
- Documentation
- The help center documents previews, client differences, integrations, browser support, accessibility, spam testing, security, and troubleshooting.help.litmus.com · read 15 Oct 2026
- Email builder
- The product includes HTML and visual editors for creating on-brand emails with or without coding.litmus.com · read 15 Oct 2026
- Email Guardian
- Email Guardian provides unlimited 24/7 monitoring and alerts when client changes may break an email.litmus.com · read 15 Oct 2026
- Email monitoring
- Email Guardian monitors deployed emails around the clock and alerts users to issues such as failing links and broken renders.litmus.com · read 2 Oct 2026
- Email previews
- Litmus previews emails across more than 100 popular email clients and devices, including dark mode.litmus.com · read 15 Oct 2026
- Extension limitation
- The extension is free to download but full pre-send testing and personalization require a paid Litmus account, and it is currently Chrome-only.help.litmus.com · read 15 Oct 2026
- Funding and owner
- Crunchbase lists Spectrum Equity as the Series A investor and says Litmus was acquired by Validity.crunchbase.com · read 15 Oct 2026
