Instead of S-Docs
S-Docs alternatives
S-Docs brings document creation and electronic signatures together around CRM data. Its Salesforce version runs inside the Salesforce organization and supports templates built with Salesforce data, conditional logic, formulas, related data, and custom Apex. Teams can generate documents on demand, through Salesforce Flow, or in scheduled and batch processes. It also integrates directly with HubSpot and supports Amazon S3, Box, and Google Drive storage. Its Salesforce solution is described as FedRAMP High and DoD IL5 compliant, serving regulated organizations across sectors including healthcare and financial services.
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Esup-Signature
by Esup-SignatureFree plan APILinuxMac+3Free, self-hosted signing with bulk sending — Esup-Signature focuses on e-signing, with bulk sending, SMS authentication, and API access rather than S-Docs’ CRM-driven document generation.
Open source Visit site - 2
OpenSign
Free plan Open source APILinuxMac+3Open-source PDF signing with API workflows — OpenSign adds reusable PDF templates and API workflows for self-signing, public links, drafts, signer roles, and webhook notifications.
Free plan Visit site - 3
Sign.Plus
by Sign.PlusFree plan AndroidAPIExtension+2Signing across mobile, web, and browser extension — Sign.Plus offers Android, iOS, web, API, and extension access with templates, bulk sending, and SMS authentication, but not stated CRM generation.
Free plan · paid from $9.99/mo · 14-day trial Visit site - 4
Signaturely
by SignaturelyFree plan AndroidAPIiPhone+1Email-based document signing with flexible signatures — Signaturely lets users upload documents, add required fields, and collect signatures by email, including typed, drawn, or uploaded signatures.
Free plan · paid from $25/mo · 7-day trial Visit site - 5
BoldSign
by BoldSignFree plan AndroidAPIExtension+1Lower-cost signing with templates and SMS authentication — BoldSign offers templates, bulk sending, audit trails, and SMS authentication, with paid plans from $5 per user monthly when billed annually.
Free plan · paid from $5/user/mo (annual) · 30-day trial Visit site - 6
Certinal
by CertinalFree trial AndroidAPIiPhone+1Paid signing with flexible signer order — Certinal focuses on e-signing, with templates, bulk sending, SMS authentication, and either ordered or parallel signing.
Pricing on request Visit site - 7
Dropbox Sign
by Dropbox SignFree plan AndroidAPIiPhone+1Signing with Dropbox Sign’s free and paid options — Dropbox Sign offers audit trails and API access but no bulk sending, while S-Docs generates CRM-based documents and supports batch processes.
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DemandTools
Free plan Windows - 11 6.3 Visit site
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Cloudingo
Free trial APIWeb - 13
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Certinia Professional Services Cloud
Paid AndroidAPIiPhone+1 - 15
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Spanning Backup
Free trial AndroidAPIiPhone+1 - 18
DealHub
Paid APIWeb - 19
LeanData BookIt
Paid APIExtensionWeb - 20
Outreach
Paid AndroidAPIiPhone+1 - 21
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Salesloft
Paid AndroidAPIExtension+2 - 23
Odaseva Data Protection
Paid Web5.1 Visit site - 24
Blackthorn Events
Paid AndroidiPhoneWeb4.9 Visit site - 25
Conga Composer
Paid Web - 26
Propel PLM
Paid AndroidiPhoneWeb - 27
Elements.cloud
Paid Web - 28
PDF Butler
Paid Web
The fit narrows if you need fillable PDFs for collecting data or use Salesforce Professional Edition or Essentials, which are incompatible. The free plan limits output to 150 documents and 50 e-signatures; the paid Salesforce plan is billed annually at $25 per user per month, with a $3,000 minimum contract and at least 10 licenses. Consider whether CRM-linked generation, Salesforce requirements, signature volume, platform access, and support needs outweigh a simpler or open-source signing workflow.