Stripe Payment Links
stripe.com
Creates a checkout page for one product without building a website
Free account
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forms.google.com
Builds a form in a minute and drops every answer into a spreadsheet.
Forms is the shortest route from a question to structured answers: the question types cover most needs, branching hides irrelevant sections, and responses land in a linked Google Sheet you can pivot straight away. Respondents need no account unless you turn on file uploads or restrict it to your organisation. The styling barely bends and is unmistakably Google, which is fine internally and looks cheap on a public site.
AltFTool does this too
If you would rather not leave the site, Form Builder covers the same job here — free, no account, and it runs in your browser.
Open Form BuilderQuestions
Free to use, but you have to register before it will do the job. File-upload questions force respondents to sign in to a Google account, and the design is close to fixed.
Yes. Google Forms sends your input to its own servers to process it. That is fine for public material; for anything containing personal data, use one of the on-device tools instead.
File-upload questions force respondents to sign in to a Google account, and the design is close to fixed.
Alternatives
Same category or same task, ordered by how closely they overlap.
stripe.com
Creates a checkout page for one product without building a website
wise.com
Converts at the real exchange rate with the fee shown as its own line
zoho.com
Free invoicing with estimates, reminders and a client portal attached
commonpaper.com
Standard business contracts written to be read, published free under CC BY
expensify.com
Photograph a receipt and it reads the amount, date and merchant off it
hubspot.com
A free CRM that remembers every email and call against a contact