Best Gpg4win Alternatives in 2026
The top Gpg4win alternatives are FlowCrypt, c.Email and Mailvelope: 15 email encryption software our editors would look at instead of Gpg4win, in our ranking order.
Gpg4win: A free, open-source Windows toolkit for OpenPGP and S/MIME email encryption. Where it falls short: limited to windows.
Switching from Gpg4win? For most email encryption software buyers the best Gpg4win alternative is FlowCrypt, built for openPGP users needing broad device coverage. On a budget, MailHippo starts at $4.95/user/mo. Cryptshare.express offers the most attachment limit (10240 MB).
Why People Look for a Gpg4win Alternative
- Limited to Windows
- Uses attachment-based encrypted email workflows
- Local application rather than a hosted secure-delivery portal
Quick Picks by What You Need
- Best overallFlowCrypt9.4
OpenPGP users needing broad device coverage
Visit FlowCrypt - Lowest priceMailHippo7.7
Paid plans from $4.95/user/mo
Visit MailHippo - Best free optionFlowCrypt9.4
Has a free plan
Visit FlowCrypt - Most attachment limitCryptshare.express7.8
10240 MB
Visit Cryptshare.express
All 15 Gpg4win Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forOpenPGP users needing broad device coverage
- Better than Gpg4win:
- Editor score 9.4 vs 7.4
A broad OpenPGP option for Gmail and mobile users, with enterprise controls for managed deployments.
- Gmail integration
- Message expiry
- Outlook integration
9.4/10★★★★★Visit FlowCrypt -
Best forFree modern encryption with Gmail or Outlook
- Better than Gpg4win:
- Editor score 9.2 vs 7.4
A free, open-source option for encrypted Gmail and Outlook email.
9.2/10★★★★★Visit c.Email -
Best forBusinesses wanting affordable OpenPGP workflows
- Better than Gpg4win:
- Editor score 9.0 vs 7.4
A browser-based OpenPGP option with broad webmail support and organization controls.
- Gmail integration
- Outlook integration
- Admin access controls
9.0/10★★★★☆Visit Mailvelope -
Best forMulti-account encryption across desktop and mobile
- Better than Gpg4win:
- Editor score 8.8 vs 7.4
A flexible encryption layer for Gmail, business mail, and multiple devices.
8.8/10★★★★☆Visit SecureMyEmail -
Best forOrganizations needing governed secure delivery
- Better than Gpg4win:
- Editor score 8.7 vs 7.4
A governed secure-email service for organizations that need controlled delivery and auditability.
- Gmail integration
- Message expiry
- Outlook integration
8.7/10★★★★☆Visit DataMotion -
Best forLarge enterprises needing integrated controls
- Better than Gpg4win:
- Editor score 8.6 vs 7.4
A broad email security platform for enterprises with advanced control requirements.
- Gmail integration
- Message expiry
- Outlook integration
8.6/10★★★★☆Visit Virtru -
Best forTeams sending secure messages through Outlook
- Better than Gpg4win:
- Editor score 8.5 vs 7.4
A flexible encryption platform for teams sending protected messages through Outlook.
- Message expiry
- Outlook integration
- Admin access controls
8.5/10★★★★☆Visit Send It Secure -
Best forEnterprises automating outbound email protection
- Better than Gpg4win:
- Editor score 8.4 vs 7.4
A policy-driven email security layer for protecting sensitive outbound messages.
- Gmail integration
- Message expiry
- Outlook integration
8.4/10★★★★☆Visit Trustifi -
Best forBusinesses needing tracking and secure replies
- Better than Gpg4win:
- Editor score 8.3 vs 7.4
A broad email security suite for teams that need encryption, tracking, and secure replies.
- Gmail integration
- Message expiry
- Outlook integration
8.3/10★★★★☆Visit RMail -
Best forGoogle or Microsoft teams needing email security
- Better than Gpg4win:
- Editor score 8.2 vs 7.4
A healthcare-focused email security suite with encryption, threat protection, DLP, and archiving.
- Gmail integration
- Outlook integration
- Admin access controls
8.2/10★★★★☆Visit Paubox -
Best forEnterprises protecting email and shared data
- Better than Gpg4win:
- Editor score 8.1 vs 7.4
Enterprise email and data protection with encryption, controls, integrations, and compliance tiers.
8.1/10★★★★☆Visit Virtru -
Best forEnterprises needing advanced email DLP
- Better than Gpg4win:
- Editor score 8.0 vs 7.4
A policy-driven email DLP and encryption suite for controlled outbound communication.
- Message expiry
- Outlook integration
- Admin access controls
8.0/10★★★★☆Visit Proofpoint -
Best forMature Outlook-based enterprise deployments
- Better than Gpg4win:
- Editor score 7.9 vs 7.4
A strong fit for enterprises that need Outlook-led encryption with policy controls.
- Message expiry
- Outlook integration
- Admin access controls
7.9/10★★★★☆Visit Mimecast -
Best forOutlook users sending very large files
- Better than Gpg4win:
- Editor score 7.8 vs 7.4
A focused Outlook-friendly service for encrypted messages and transfers up to 10 GB.
- Message expiry
- Outlook integration
7.8/10★★★★☆Visit Cryptshare -
Best forSmall teams needing low-cost portal encryption
- Better than Gpg4win:
- Editor score 7.7 vs 7.4
A low-cost secure email portal with recall, API access, and Outlook support on Pro.
- Gmail integration
- Message expiry
- Outlook integration
7.7/10★★★★☆Visit MailHippo
Gpg4win Alternatives: Common Questions
What is the best alternative to Gpg4win?
FlowCrypt: #1 in our Email Encryption Software ranking, with an editor score of 9.4 out of 10. A broad OpenPGP option for Gmail and mobile users, with enterprise controls for managed deployments.
Is there a free alternative to Gpg4win?
Yes. FlowCrypt, c.Email, Mailvelope, SecureMyEmail and DataMotion Secure Email Exchange have a free plan or a free tier (6 of the 15 alternatives on this page).
What is the cheapest paid alternative to Gpg4win?
Of the alternatives here that publish a price, MailHippo starts lowest, at $4.95/user/mo.
Why do people look for Gpg4win alternatives?
Limited to Windows; Uses attachment-based encrypted email workflows; Local application rather than a hosted secure-delivery portal.
Which Gpg4win alternative has the most attachment limit?
Cryptshare.express, with 10240 MB.
How do I switch from Gpg4win?
Export your data from Gpg4win (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Gpg4win.
How to Switch from Gpg4win
- Export your data from Gpg4win (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel Gpg4win.
Gpg4win vs Each Alternative
| # | Tool | Free plan | Paid from | Secure delivery | Recipient verification | Message expiry | Attachment limit | Score |
|---|---|---|---|---|---|---|---|---|
| 18 | Gpg4win | Yes | Free | Attachment | Identity | 7.4 | ||
| 1 | FlowCrypt | Yes | Link | Password | Yes | 25 MB | 9.4 | |
| 2 | c.Email | Yes | Free | 9.2 | ||||
| 3 | Mailvelope | Yes | €32.40/user/yr | Attachment | Identity | 50 MB | 9.0 | |
| 4 | SecureMyEmail | Yes | 8.8 | |||||
| 5 | DataMotion Secure Email Exchange | Yes | Portal | Identity | Yes | 50 MB | 8.7 | |
| 6 | Virtru Email Encryption | No | $119/mo | Link | Identity | Yes | 150 MB | 8.6 |
| 7 | Send It Secure | Yes | Portal | Identity | Yes | 50 MB | 8.5 | |
| 8 | Trustifi Outbound Shield | No | Link | Password | Yes | 8.4 | ||
| 9 | RMail | Attachment | Password | Yes | 10 MB | 8.3 | ||
| 10 | Paubox Email Encryption | No | $29/mo | Link | Password | No | 150 MB | 8.2 |
| 11 | Virtru Data Security Platform | No | $119/mo | 8.1 | ||||
| 12 | Proofpoint Email DLP and Encryption | Portal | Yes | 8.0 | ||||
| 13 | Mimecast Secure Messaging | Portal | Yes | 7.9 | ||||
| 14 | Cryptshare.express | No | €5/user/mo | Portal | Password | Yes | 10240 MB | 7.8 |
| 15 | MailHippo | No | $4.95/user/mo | Portal | Password | Yes | 50 MB | 7.7 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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