SheetLink Forms vs Formspree
Formspree is one of the oldest and most complete form backends around. The real difference is the destination: Formspree treats your inbox and dashboard as home base, while SheetLink Forms treats the spreadsheet you already work in as the system of record.
SheetLink Forms
SheetLink Forms is a hosted form endpoint that writes submissions straight into a Google Sheet or an Excel Online table. Every form gets a permanent URL at sheetlinkforms.com/f/your-token that accepts plain HTML posts, JSON, platform webhooks, and (soon) email. Rows land under your header row via the Google Sheets API or Microsoft Graph - no Zapier, no middleman - with retries at 5 minutes, 30 minutes, and 2 hours, and a delivery log in the dashboard. Suspicious submissions are quarantined for one-click review, never silently dropped, and the optional embed script captures UTM parameters and ad click IDs automatically. It is free during beta (invite required), and there are no per-submission fees, ever. See how it works or try the live demo.
Formspree
Formspree has been the default answer to "I need a form backend" since the mid-2010s, and it has earned that position. You point a form at a Formspree URL and get email notifications, a submission archive, spam filtering, and a large integration catalog. The free plan includes 50 submissions per month with unlimited forms and projects, per their account limits page, and paid plans on their pricing page raise the caps and unlock file uploads, longer retention, and team features. Spam is handled by "Formshield", a machine-learning filter with adjustable aggressiveness, alongside honeypot fields and reCAPTCHA, per their spam filtering docs. It is a mature, well-documented product.
Side by side
| SheetLink Forms | Formspree | |
|---|---|---|
| Spreadsheet delivery | The sheet is the product. Rows append directly under the header of a Google Sheet you pick (limited drive.file scope) or into an Excel Online table, via the official APIs. Field names matching column headers map automatically. | A real Google Sheets plugin exists on paid plans: it creates a new spreadsheet in your Drive, backfills past submissions, and appends rows (adding columns for new fields), per their Google Sheets docs. No Excel Online table destination is documented. |
| Spam handling | Honeypot, per-form and per-IP rate limits, origin allowlist, content heuristics with a strictness dial, timing signal, optional Cloudflare Turnstile. Suspicious submissions are quarantined for one-click review - a false positive costs you seconds, not a lead. | Formshield, a machine-learning model trained on millions of submissions, with adjustable aggressiveness and individual classifier toggles, plus honeypot fields and reCAPTCHA v2/v3. A genuinely strong filter - review of what it catches happens in the dashboard. |
| Ad attribution and click IDs | The sl.js embed captures utm_source/medium/campaign/term/content plus gclid, wbraid, gbraid, fbclid, and msclkid, persists them in localStorage across pages, and attaches them to the row. Near-unique in this category. | No automatic click-ID capture appears in their public docs. The standard route is hidden fields you populate with your own JavaScript, which works but is your code to write and maintain. |
| Pricing model | Free during beta (invite required). No per-submission or per-task fees, ever. Planned post-beta pricing: a free tier around 50 submissions/month and a paid plan around $15-19/month, unmetered. | Free plan: 50 submissions/month, unlimited forms, 30-day history. Paid tiers raise the monthly submission cap - see their pricing page. Volume is metered by plan tier. |
| File uploads | Not supported yet - multipart posts are accepted but file parts are dropped. If uploads are core to your form, Formspree wins this row outright. | Formspree wins here. Paid plans accept up to 10 files per submission at 25 MB each, stored against a plan quota and downloadable from the dashboard, per their file upload docs. |
| Platform webhooks | Dedicated webhook endpoints for Webflow (/w/webflow/token) and Framer (/w/framer/token) - one webhook covers every form on a Webflow site, with the form name recorded per row. | Formspree works anywhere a form action or fetch call can point, which covers Webflow and Framer embeds too; its integration catalog focuses on outbound destinations rather than inbound platform webhooks. |
| Email notifications | None currently. Rows land in your sheet and quarantined items wait in the dashboard - there is no notification email per submission. If you live in your inbox, this row goes to Formspree. | Formspree wins here. Email notification per submission is the core of the product, with linked email addresses on every plan. |
| Delivery and reliability | Asynchronous worker delivers directly to the Google Sheets API or Microsoft Graph with retries at 5 min / 30 min / 2 h, a per-submission delivery log, and a formula-injection guard that escapes leading = + - @ in cell values. | Submissions are stored in the Formspree archive (30 days on free, longer on paid) and fan out to email and integrations. A proven pipeline that has run at scale for years. |
Choose Formspree when...
Pick Formspree if your form collects file uploads - resumes, screenshots, attachments - because SheetLink Forms currently drops file parts. Pick it if you want an email in your inbox for every submission, if you need team seats and a long submission archive today, or if you simply want the most battle-tested name in the category with the largest integration catalog. Formspree is a mature product and none of this comparison should talk you out of it if those are your needs.
Choose SheetLink Forms when...
Pick SheetLink Forms if the spreadsheet is where the work actually happens. Rows append into the sheet or Excel table you already use - not a new spreadsheet created for you - with automatic column mapping, ad click IDs and UTMs attached to every row, and spam quarantined for review instead of filtered on trust. And the pricing model is deliberately different: no per-submission metering, ever. Try the live demo or request an invite.
FAQ
Can I migrate from Formspree to SheetLink Forms?
Yes, and it is usually a one-line change. Point your form at your SheetLink endpoint:
<form action="https://sheetlinkforms.com/f/your-token" method="POST"> <input name="_slhp" tabindex="-1" autocomplete="off" style="position:absolute;left:-9999px"></form>
Keep your existing inputs exactly as they are. Field names that match your sheet's column headers map automatically - the matching is case and punctuation insensitive, so "Email", "email", and "E-mail" all land in the same column - and explicit per-field mapping is available for anything that does not line up. If you submit with fetch or XHR, change the URL in your request the same way. Full request and response details are in the developer docs.
Does SheetLink Forms send email notifications like Formspree does?
Not currently. Submissions land as rows in your connected sheet or Excel table, and anything the screening flags waits in the quarantine queue in your dashboard. If a notification email per submission is essential to your workflow today, Formspree serves that better. Email-in submission (forwarding mail to a form address) is currently in setup on our side, but outbound notification emails are not part of the product yet.
What happens to file uploads if I switch?
SheetLink Forms accepts multipart posts but drops the file parts - only the text fields become cells. If your form relies on attachments, keep that form on Formspree (paid plans take up to 10 files at 25 MB each) or split the flow: text fields to your sheet, files through a dedicated uploader.
How do the free tiers compare?
Formspree's free plan includes 50 submissions per month with a 30-day archive, per their account limits page. SheetLink Forms is entirely free during beta - invite required via the waitlist - and the planned post-beta free tier is around 50 submissions/month, with paid plans unmetered rather than capped per submission.
Comparison facts reference Formspree's public documentation and pricing pages and were checked at publish time; tell us if something is out of date.