Data PendingOSI-approved OSSEmailUncategorizedLocal-First SoftwareEvidence Watch

Tuta

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

Data confidence90/100
Source coverage95/100
Publish confidence91/100
Evidence checkedSep 15, 2026
About this tool

What ToolVitals knows about Tuta

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

This tool has an OSI-approved open-source license signal.

Useful public signals are available, but the evidence is not yet complete enough for a strong ToolVitals verdict.

Source-visible projectUncategorizedOSI-approved OSSEvidence Watch
Score coverage

Evidence Watch

ToolVitals has useful public signals for Tuta, but not enough evidence to publish a strong verdict score yet.

GitHub sourceChangelog/RSS source90/100 data confidence
Project provenance

Fork network

Popular active forks

Highest GitHub star count first
Repository

GitHub Activity

TS
tutao/tutanota
Stars7,919
Forks637
Contributors22Active in 90d · as of Sep 15, 2026
Open Issues998
Primary Language
TypeScript
Last Commit
Today
Commits 30d
71
Commits 90d
608
Releases 90d
30
Default Branch
master
License
GPL-3.0
Repository Status
Active repository
Evidence

Signal Quality

Data Confidence90/100Strong
Source Coverage95/100Strong
Publish Confidence91/100Strong

ConfidenceHigh-confidence score from multiple public signals.

How ToolVitals scores work
Openness

License Evidence

Class
OSI-approved OSS
License
GPL-3.0

This tool has an OSI-approved open-source license signal.

Sources

Tracked Sources

Profile

Classification

Category
Email
Use Case
Uncategorized
Openness
OSI-approved OSS
License
GPL-3.0
Tool Mode
Source-visible project
Score Model
Public Signal Watch
Score Visibility
Evidence Watch
Status
Data Pending
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Machine-readable profile

Use the clean Markdown or structured JSON representation from the same published ToolVitals evidence snapshot.

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Tags
open-sourceemailencryptionjavascriptmithrilprivacysecuritytutanotaencrypted-emailcalendarcontacts