emoji_events Best Zero Knowledge

Top-rated zero knowledge ranked by our AI-powered scoring system.

17
Products Ranked
7.4
Avg Score
8.9
Top Score
Summary: The best zero knowledge in 2026 is Tresorit with a score of 8.9/10, followed by NordLocker (8.3) and Sync.com (8.3). This ranking is based on Lunoo's AI-powered scoring system which evaluates 17 zero knowledge across quality, features, user satisfaction, and value. Rankings are updated daily.

table_chart Top 5 at a Glance

Rank Name Score Price Best For
#1 Tresorit 8.9 Free / $10/user/month for business plans, varies for enterprise Ideal for businesses requiring high security standards and c... Visit
#2 NordLocker 8.3 Free / $4.99/mo Ideal for individuals and small businesses who prioritize da... Visit
#3 Sync.com 8.3 Free / $5/month Sync.com is best suited for businesses and individuals who p... Visit
#4 SpiderOak One Backup 8.2 Free / $5/month Ideal for users who prioritize data security and need extens... Visit
#5 Icedrive 8.2 Free / $5/mo Ideal for Windows users who require robust file security and... Visit

leaderboard Full Zero Knowledge Rankings

Best 1 Tresorit
Tresorit
Free Plan Available From $10/user/month for business plans, varies for enterprise

Tresorit is an enterprise-grade cloud storage and backup solution that prioritizes security above all else. It is designed for businesses that handle highly sensitive data, such as legal, financial, o...

8.9 Very Good
Visit
2 NordLocker
NordLocker
Free Plan Available From $4.99/mo

NordLocker, from the team behind NordVPN, is an encryption tool with secure cloud backup. It first encrypts files locally using zero-knowledge cryptography before optionally uploading them to Nord's c...

8.3 Very Good
Visit
3 Sync.com
Sync.com
Free Plan Available From $5/month

Sync.com is a Canadian-based cloud storage provider that prioritizes privacy and security without sacrificing usability. It uses zero-knowledge encryption, meaning your files are encrypted before they...

8.3 Very Good
Visit
4 SpiderOak One Backup
SpiderOak One Backup
Free Plan Available From $5/month

SpiderOak One is a zero-knowledge backup and sync tool with a strong security heritage. It performs continuous or scheduled backups of selected folders across unlimited devices, with no file size limi...

8.2 Very Good
Visit
5 Icedrive
Icedrive
Free Plan Available From $5/mo

Icedrive is a newer entrant that has quickly gained popularity for its incredibly modern, intuitive interface and its 'virtual drive' technology. This feature allows you to mount your cloud storage as...

8.2 Very Good
Visit
6 MEGA
MEGA
Free Plan Available From Free with limited features or $10/month for premium plan

Mega is well-known for its generous free storage tier and its commitment to user privacy through end-to-end encryption. It is a powerful tool for users who need to transfer large files quickly and sec...

8.1 Very Good
Visit
7 Dashlane Enterprise
Dashlane Enterprise
From $12/user/month

Dashlane Enterprise offers zero-knowledge encryption and advanced team management tools. It is designed to handle large-scale deployments with features like centralized policy management, making it su...

7.9 Good
Visit
8 SpiderOak One
SpiderOak One
Free Plan Available From $5/mo

SpiderOak One is a US-based 'No Knowledge' backup and sync service where all data is encrypted client-side before upload, and the company has zero access to keys or passwords. It emphasizes robust bac...

7.9 Good
Visit
9 KeepassXC
KeepassXC
Free Plan Available

KeePassXC is a community-driven, offline password manager that stores your credentials in a local, encrypted database file. It is highly secure because it never touches the cloud, putting the user in...

7.8 Good
Visit
10 Internxt
Internxt
Free Plan Available From $5/mo

Internxt is a privacy-focused cloud storage provider that utilizes decentralized technology to secure user data. It offers 10GB of free storage and encrypts files before they leave the user's device....

7.8 Good
Visit
11 SpiderOak
SpiderOak
Free Plan Available From $5/month for personal plan

SpiderOak prioritizes privacy with its zero-knowledge encryption, ensuring data is encrypted on the user's device before uploading. Plans start at 10 USD/month for 60GB. It offers file syncing and col...

7.5 Good
Visit
12 Filen
Filen
Free Plan Available From $5/mo

Filen is a rising star in the encrypted cloud storage market, based in Germany. It is fully open-source and built from the ground up with zero-knowledge encryption. Filen is known for its fast perform...

7.5 Good
Visit
13 ProtonMail
ProtonMail
Free Plan Available From $4.95/mo

ProtonMail provides end-to-end encrypted email services, prioritizing user privacy and security. While a free tier exists with limited storage and features, the paid plans offer significantly more sto...

7.3 Good
Visit
14 OmniSafe
OmniSafe

OmniSafe is a password manager that focuses on simplicity and security. It offers a user-friendly interface, secure notes, and a password generator. OmniSafe supports cross-platform synchronization an...

6.6 Fair
Visit
15 Bitwarden
Bitwarden
Free Plan Available From $1/mo for premium plans

Bitwarden is a highly secure, open-source password manager that offers a compelling free tier and inexpensive premium plans. Its transparent architecture has been independently audited. It supports un...

5.8 Average
Visit
16 pCloud Crypto (Add-on)
pCloud Crypto (Add-on)

pCloud Crypto is a specific, paid add-on for the pCloud storage service. It provides a dedicated, zero-knowledge encrypted folder where files are protected before they are uploaded. While it is a powe...

5.5 Average
Visit
17 Proton Mail
Proton Mail

Proton Mail offers a secure, encrypted email service based in Switzerland, prioritizing user privacy above all else. It provides a clean, modern interface and integrates well with other privacy-focuse...

4.8 Poor
Visit

help Frequently Asked Questions

What is the best Zero Knowledge in 2026?
According to our AI-powered rankings, Tresorit is currently rated as the best Zero Knowledge with a score of 8.9/10. Other top-rated options include Tresorit, NordLocker, Sync.com.
How are these Zero Knowledge ranked?
Our rankings use an AI-powered scoring system that analyzes features, user reviews, expert opinions, market presence, and value for money. Each Zero Knowledge receives an objective score from 0 to 10.
How often are the rankings updated?
Our rankings are updated continuously as new data becomes available. Scores are recalculated regularly to ensure you always see the most current and accurate ratings.
What are the top 5 Zero Knowledge in 2026?
The top 5 Zero Knowledge in 2026 are: Tresorit, NordLocker, Sync.com, SpiderOak One Backup, Icedrive. These are ranked by our AI-powered scoring system based on features, quality, and user satisfaction.
How many Zero Knowledge are ranked on Lunoo?
Lunoo currently ranks 17 Zero Knowledge. New options are added and scored regularly.
Which Zero Knowledge has the highest score?
Tresorit currently holds the highest score at 8.9/10 in our Zero Knowledge rankings.
Is Tresorit worth it?
Tresorit scores 8.9/10, making it one of the highest-rated Zero Knowledge available. Its strong rating reflects excellent performance across our evaluation criteria.
What should I look for when choosing a Zero Knowledge?
Key factors include your specific use case, budget, features offered, ease of use, and long-term value. Our scoring system evaluates these factors objectively. Compare the top options above to find the best fit.
Are there any free Zero Knowledge options?
Some Zero Knowledge offer free plans or trials. Check each option's website for current pricing. Our rankings focus on overall quality regardless of price point.
What is the difference between top-rated Zero Knowledge?
While Tresorit and NordLocker are both highly rated, they differ in features, pricing, and target audience. Use our comparison tool to see detailed side-by-side differences.
Can I compare Zero Knowledge on Lunoo?
Yes! Lunoo offers a detailed comparison tool. Click the compare icon on any two items to see a side-by-side analysis of scores, features, pros, and cons.
How accurate are Lunoo's Zero Knowledge rankings?
Our AI-powered scoring system is calibrated against established ground truth sources and continuously improved. We analyze features, expert reviews, user feedback, and market data to provide the most objective rankings possible.

science How We Rank

Every zero knowledge is scored across 12 weighted criteria from hundreds of verified sources:

  • Features & Capabilities - Comprehensive analysis of what each option offers
  • User Reviews - Aggregated feedback from real users across platforms
  • Expert Opinions - Professional reviews and industry recognition
  • Value for Money - Cost-effectiveness relative to features
  • Reliability & Support - Track record and customer service quality

Rankings are updated continuously as new information becomes available.

Disclosure: Some links on this page may be affiliate links. If you make a purchase through these links, we may earn a small commission at no extra cost to you. This does not influence our rankings — all scores are determined by our independent AI-powered evaluation system.

Save to your list

Create your first list and start tracking the tools that matter to you.

Track favorites
Get updates
Compare scores

Already have an account? Sign in

Compare Items

See how they stack up against each other

Comparing
VS
Select 1 more item to compare