SignWell alternative for developers: an honest comparison from a competitor
Comparing SignWell alternatives? I build PutMySign, a competing e-signature API, so check everything I say. Pricing model, free tiers, test mode, compliance and webhooks, with sources.
Akbar Ali · 24 October 2026
If you're searching for a SignWell alternative, there's a decent chance you're a developer who liked their pricing page more than DocuSign's. SignWell is one of the few e-signature APIs that publishes a per-document price instead of making you talk to sales.
I build PutMySign, which competes with them. So don't take my word for any of this. Every number below links to the page it came from, and I checked them all on October 24, 2026.
The short version first:
| SignWell | PutMySign | |
|---|---|---|
| Pricing model | Per document, from $0.85 | Flat, $19/mo for 100 documents |
| Free tier | 25 API documents/mo, card on file | 10 documents/mo, no card |
| Embedded signing | Included in the API plan | Included on both plans |
| Test mode | Unlimited API test usage | Test key that never sends email |
| Compliance | SOC 2 Type II, HIPAA | - |
1. Per document vs flat
This is the real fork. SignWell's API pricing is usage-based: the first 25 API documents a month are free with a card on file, then it starts at $0.85 per document and drops with volume, down to $0.20 and lower if you commit to a lot. One document counts once, however many files or signers it carries.
PutMySign is flat: $0 for 10 documents a month, $19 for 100. No card on the free plan.
Do the arithmetic at your volume, because it flips. At 20 documents a month, SignWell is free and I'm not. At 100, SignWell's starting rate works out to about $64 (25 free, then 75 x $0.85) against my $19 - and their rate drops with volume, so the real figure lands lower. Past that, their per-document price keeps dropping, so at real scale you'd ask them for a quote either way.
2. The free tiers are genuinely different deals
SignWell's 25 free API documents need a credit card on file. Their free developer account covers 3 documents a month without one, plus unlimited test usage.
PutMySign's free plan is 10 documents a month, no card, and everything works: API, embedded signing, webhooks. The limit is volume, not features.
If you're evaluating, SignWell's unlimited test usage is the better sandbox. If you're shipping something small and don't want a card on file anywhere, the no-card free plan is the point.
3. Test mode
SignWell says its free developer account has unlimited API test usage. PutMySign's approach is a test key that behaves exactly like a live key except it never sends email, and it works the moment you create it. Both beat a separate sandbox environment you have to provision. More on how ours works.
4. Compliance: SignWell wins, full stop
SignWell lists SOC 2 Type II and HIPAA on the pricing page. If your buyer's questionnaire asks for either, this comparison is over and you should go with them. I'm a one-person product and I don't have those attestations. I'd rather lose the deal than have you find that out in procurement.
5. Webhooks and the finished file
Whatever you pick, ask the same three questions: are webhook deliveries signed and verifiable over the raw body, are failures retried, and do you get the finished PDF with the audit trail inside it.
PutMySign signs every delivery with HMAC over the timestamp and raw body, retries for about a day, and hands you the sealed PDF on document.completed. Details. I haven't audited SignWell's webhook behavior, so I'll leave the gap rather than guess. Their docs are public if you want to compare that row yourself.
When SignWell is the right pick
- You need SOC 2 or HIPAA on paper. Not negotiable, they have it, I don't.
- You send under 25 documents a month and don't mind a card on file. That's free, and free beats $19.
- You're at a volume where per-document pricing with a committed discount beats any flat plan. Ask them.
When PutMySign is the right pick
- You send tens to low hundreds of documents a month and want the bill to be boring: $0 or $19.
- You want embedded signing and webhooks without a card anywhere, including on the free plan.
- You'd rather email the person who wrote the code than open a support ticket.
If you're still wider than these two, I compared the bigger field too: DocuSign API alternatives. And when you're ready to see the integration itself, the Next.js guide is the whole thing end to end.
What made you look for an alternative in the first place? The price, or something in the API that fought back?