Best Open Systems CASB Alternatives in 2026
Updated
20 platforms from cloud access security broker software ranked against Open Systems CASB on the same published basis.
- 1Open Systems CASB vs Cloudflare Access
- 2Open Systems CASB vs Netskope One Private Access
- 3Open Systems CASB vs Cisco Secure Access
- 4Open Systems CASB vs Proofpoint Email DLP and Encryption
- 5Open Systems CASB vs Zscaler Private Access
- 6Open Systems CASB vs Cato Client
- 7Open Systems CASB vs Check Point Harmony SASE
- 8Open Systems CASB vs Forcepoint ZTNA
- 9Open Systems CASB vs iboss Cloud
- 10Open Systems CASB vs Versa Zero Trust Network Access
- 11Open Systems CASB vs Airtel Business Connect
- 12Open Systems CASB vs Prisma Browser
- 13Open Systems CASB vs QAuth
- 14Open Systems CASB vs DoControl
- 15Open Systems CASB vs Forcepoint ONE CASB
- 16Open Systems CASB vs FortiCASB
- 17Open Systems CASB vs Fortra ZTNA
- 18Open Systems CASB vs Lookout Secure Cloud Access
- 19Open Systems CASB vs Netskope One CASB
- 20Open Systems CASB vs Proofpoint Cloud App Security Broker
Open Systems CASB alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Cloudflare Access | 7.2 | Free plan | $7/mo | Android, API, iOS, Linux, Mac, Web, Windows |
| 2 | Netskope One Private Access | 6.7 | No | — | Android, API, iOS, Linux, Mac, self-hosted, Web, Windows |
| 3 | Cisco Secure Access | 6.6 | No | — | Android, API, iOS, Linux, Mac, Web, Windows |
| 4 | Proofpoint Email DLP and Encryption | 5.4 | No | — | Android, iOS, Web, Windows |
| 5 | Zscaler Private Access | 5.4 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 6 | Cato Client | 5.3 | No | — | Android, iOS, Linux, Mac, Windows |
| 7 | Check Point Harmony SASE | 5.3 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 8 | Forcepoint ZTNA | 5.3 | No | — | Mac, self-hosted, Web, Windows |
| 9 | iboss Cloud | 5.3 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 10 | Versa Zero Trust Network Access | 5.3 | No | — | Android, iOS, Linux, Mac, self-hosted, Web, Windows |
| 11 | Airtel Business Connect | 5.2 | No | — | Web |
| 12 | Prisma Browser | 5.2 | No | $10/mo | Web |
| 13 | QAuth | 5.2 | No | — | Linux, Mac, Web, Windows |
| 14 | DoControl | 5.1 | No | $4166.67/mo | Web |
| 15 | Forcepoint ONE CASB | 5.1 | No | — | Mac, Web, Windows |
| 16 | FortiCASB | 5.1 | No | — | Web |
| 17 | Fortra ZTNA | 5.1 | No | — | Web |
| 18 | Lookout Secure Cloud Access | 5.1 | No | — | Web |
| 19 | Netskope One CASB | 5.1 | No | — | Android, iOS, Linux, Mac, Web, Windows |
| 20 | Proofpoint Cloud App Security Broker | 5.1 | No | — | Web |
The sponsored alternative slot on this page is labelled Sponsored.
Questions about Open Systems CASB alternatives
What is the best alternative to Open Systems CASB?
Cloudflare Access, number 1 in cloud access security broker software with a score of 7.2 out of 10. The others here: Netskope One Private Access, Cisco Secure Access, Proofpoint Email DLP and Encryption and 16 more.
What is the best free alternative to Open Systems CASB?
Cloudflare Access is the best-ranked alternative with a free plan. 1 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.