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Best SignatureAPI Alternatives in 2026

Updated

20 apps from electronic signature software ranked against SignatureAPI on the same published basis.

  1. 1
    Dokobit Free plan AndroidapiextensioniOSLinux €10/mo6.8
    SignatureAPI vs Dokobit
  2. 2
    Secured Signing Free plan AndroidapiiOSMacWeb $30119.17/mo6.7
    SignatureAPI vs Secured Signing
  3. 3
    Certinal Free trial AndroidapiiOSWeb 6.6
    SignatureAPI vs Certinal
  4. 4
    Dropbox Sign Free plan AndroidapiiOSWeb $15/mo6.6
    SignatureAPI vs Dropbox Sign
  5. 5
    OpenSign Free plan apiLinuxMacself-hostedWeb Free6.6
    SignatureAPI vs OpenSign
  6. 6
    Signaturely Free plan AndroidapiiOSWeb $20/mo6.6
    SignatureAPI vs Signaturely
  7. 7
    Skribble Free plan AndroidapiiOSWeb €23/mo6.6
    SignatureAPI vs Skribble
  8. 8
    Xodo Sign Free plan AndroidapiiOSWeb $0.83/mo6.6
    SignatureAPI vs Xodo Sign
  9. 9
    BoldSign Free plan AndroidapiextensioniOS $5/mo6.5
    SignatureAPI vs BoldSign
  10. 10
    Leegality Free plan AndroidapiiOSWeb ₹15/mo6.5
    SignatureAPI vs Leegality
  11. 11
    Signority API Free plan apiself-hostedWebWin $10.75/mo6.5
    SignatureAPI vs Signority API
  12. 12
    DigiSigner Free plan apiWeb $15/mo6.4
    SignatureAPI vs DigiSigner
  13. 13
    Sertifi Free plan apiWeb Free6.4
    SignatureAPI vs Sertifi
  14. 14
    sproof sign Free plan apiWeb 6.4
    SignatureAPI vs sproof sign
  15. 15
    DocuSeal Free plan api $0.20/mo6.3
    SignatureAPI vs DocuSeal
  16. 16
    FreeSign Free plan self-hostedWeb Free6.3
    SignatureAPI vs FreeSign
  17. 17
    Namirial Sign Free plan api Free6.2
    SignatureAPI vs Namirial Sign
  18. 18
    Sertifi by Flywire Free plan api Free6.2
    SignatureAPI vs Sertifi by Flywire
  19. 19
    SignWell Free plan api $10/mo6.2
    SignatureAPI vs SignWell
  20. 20
    Zoho Sign Free plan api Free6.2
    SignatureAPI vs Zoho Sign

SignatureAPI alternatives compared

#AppScoreFree planFromRuns on
1Dokobit6.8Free plan€10/moAndroid, API, Browser, iOS, Linux, Mac, Web, Windows
2Secured Signing6.7Free plan$30119.17/moAndroid, API, iOS, Mac, Web, Windows
3Certinal6.6Android, API, iOS, Web
4Dropbox Sign6.6Free plan$15/moAndroid, API, iOS, Web
5OpenSign6.6Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
6Signaturely6.6Free plan$20/moAndroid, API, iOS, Web
7Skribble6.6Free plan€23/moAndroid, API, iOS, Web
8Xodo Sign6.6Free plan$0.83/moAndroid, API, iOS, Web
9BoldSign6.5Free plan$5/moAndroid, API, Browser, iOS
10Leegality6.5Free plan₹15/moAndroid, API, iOS, Web
11Signority API6.5Free plan$10.75/moAPI, self-hosted, Web, Windows
12DigiSigner6.4Free plan$15/moAPI, Web
13Sertifi6.4Free planFreeAPI, Web
14sproof sign6.4Free planAPI, Web
15DocuSeal6.3Free plan$0.20/moAPI
16FreeSign6.3Free planFreeself-hosted, Web
17Namirial Sign6.2Free planFreeAPI
18Sertifi by Flywire6.2Free planFreeAPI
19SignWell6.2Free plan$10/moAPI
20Zoho Sign6.2Free planFreeAPI
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Questions about SignatureAPI alternatives

What is the best alternative to SignatureAPI?

Dokobit, number 1 in electronic signature software with a score of 6.8 out of 10. The others here: Secured Signing, Certinal, Dropbox Sign and 16 more.

What is the best free alternative to SignatureAPI?

Dokobit is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.