BoldSign
E-signature app and API from Syncfusion with a free 25-envelope plan and unlimited envelopes on Business
What is BoldSign?
BoldSign is an e-signature web app and API from Syncfusion. Senders prepare documents with templates, conditional fields and automatic field detection, send them with reminders and signer authentication, and keep an audit trail. The free Essential plan sends 25 envelopes a month for one user. Growth, at $5 per user a month billed yearly, allows 50 envelopes per user a month, and Business, at $15 per user a month billed yearly, removes envelope limits and adds SSO, AI field detection and AI search. Premium covers unlimited users sharing 250 envelopes a month. Live API use needs the Enterprise API plan, from $30 a month for 40 envelopes.
Good for
- Sending up to 25 envelopes a month for free
- Small teams that send many contracts and want unlimited envelopes per user
- Developers embedding signing in a SaaS app
Key features
- Templates, conditional fields, signer attachments and automatic field detection on every plan
- Audit trail, tamper-proof documents, automated reminders and multiple signer languages
- AI-powered field detection and AI search on Business, Premium and Enterprise API
- MCP server that lets Claude, ChatGPT and GitHub Copilot send approved templates and check signing status, on the Enterprise API plan
- Bulk send, bulk links, SMS and WhatsApp delivery, ID verification and QES as add-ons
- Data residency in the US, EU, Canada and Australia; SOC 2 Type II, GDPR and eIDAS, with HIPAA from Business
- API with SDKs for C#, Java, PHP, Python and Node, embedded signing, webhooks and a free sandbox
- iOS and Android apps
Limitations to know about
- Free plan: 1 user, 25 envelopes a month and 2 templates
- Growth caps envelopes at 50 per user a month; unlimited envelopes need Business
- Bulk send, SMS delivery and ID verification are paid add-ons, available from Business
- Web app plans get the API sandbox only; live API use needs the Enterprise API plan
BoldSign pricing
BoldSign has a free plan. Growth and Business cost $5 and $15 per user a month billed annually, or $15 and $25 billed monthly. Premium and Enterprise API cost $138 and $30 a month.
| Plan | Price | What you get |
|---|---|---|
| Essential | $0 | 25 envelopes a month, 2 templates, 1 user, audit trail, reminders, signer authentication, custom branding, iOS and Android apps |
| Growth | $15/user/mo billed monthly, or $5/user/mo billed yearly | 50 envelopes per user a month, 10 templates, 2 brands, template sharing, dynamic field placement, in-person signing, team management, Xero integration |
| Business | $25/user/mo billed monthly, or $15/user/mo billed yearly | Unlimited envelopes and templates, SSO, custom roles, AI-powered field detection, AI search, scheduled send, signing groups, HIPAA, HubSpot integration; bulk send, SMS delivery and ID verification as add-ons |
| Premium | $138/mo billed monthly, or $99/mo billed yearly | Unlimited users sharing 250 envelopes a month, unlimited templates, all Business features |
| Enterprise API | From $30/mo including 40 envelopes, then $0.75 per envelope | Live API access with embedded requesting, signing and templates, webhooks, API dashboard, 2 application users, Zapier and Power Automate integrations |
Free plan limits: 25 envelopes a month, 2 templates, 1 user, 1 brand; audit trail, reminders, signer authentication, custom branding and mobile apps included
What a team pays: For a team of five on Growth: $25 a month billed annually ($300 a year), or $75 billed monthly.
Costs on top of a plan
- Extra API envelopes: $0.75 per envelope (Beyond the 40 envelopes included in Enterprise API)
- Extra Enterprise API users: $28 per user (Beyond the 2 users included)
BoldSign alternatives
SignWell
E-signature tool priced by sender, with unlimited documents on paid plans and 25 free API documents a month
Docusign eSignature
E-signature priced per user with envelope allowances, plus IAM plans adding AI agreement search and workflows
Dropbox Sign
E-signature tool from Dropbox, formerly HelloSign, with unlimited signature requests on paid plans
Zoho Sign
Digital signature app from Zoho with a free 5-envelope plan, per-user plans and $0.50-per-envelope API pricing
signNow
E-signature plans priced per account with unlimited users, capped by signature invites
PandaDoc
Document builder for proposals, quotes and contracts with e-signatures, payments and a free 5-document plan
Frequently asked questions
Is BoldSign free?
BoldSign has a free plan. 25 envelopes a month, 2 templates, 1 user, 1 brand; audit trail, reminders, signer authentication, custom branding and mobile apps included. Paid plans start at $5/user/mo billed annually.
How much does BoldSign cost?
Growth and Business cost $5 and $15 per user a month billed annually, or $15 and $25 billed monthly. Premium and Enterprise API cost $138 and $30 a month. There is also a free plan. On Growth: 50 envelopes per user a month, 10 templates; additional users at the same per-user price. Prices as published on BoldSign's pricing page on 21 October 2026.
How much does the BoldSign API cost?
The Enterprise API plan starts at $30 a month and includes 40 envelopes; after that each envelope costs $0.75. A free sandbox is available for testing, with documents watermarked and deleted after 14 days.
What is BoldSign used for?
BoldSign is an e-signature web app and API from Syncfusion. People use it for sending up to 25 envelopes a month for free, small teams that send many contracts and want unlimited envelopes per user and developers embedding signing in a SaaS app.
What are the alternatives to BoldSign?
Tools that do a similar job include SignWell, Docusign eSignature, Dropbox Sign, Zoho Sign and signNow. Each has its own page here with its plans, limits and prices.
Who makes BoldSign?
BoldSign is made by Syncfusion, Inc., based in Morrisville, North Carolina, US.
Sources
Every fact on this page comes from Syncfusion, Inc.'s own pages, read on the dates shown.
- boldsign.com/electronic-signature-pricing/?plan=webapp (web app plan prices (yearly and monthly toggles read in a browser), envelope and template limits, plan comparison table, add-ons, trial) read 21 October 2026
- boldsign.com/electronic-signature-pricing/?plan=api (Enterprise API plan price, included envelopes, overage rate, sandbox FAQ) read 21 October 2026
- boldsign.com/ (product overview, AI features, integrations, SDK languages, Syncfusion ownership and address) read 21 October 2026
- boldsign.com/mcp-ai-esignature-assistant/ (MCP server: supported AI tools, actions and required plan) read 21 October 2026
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