Basin
Formspree.io
Forminit
Typeform
Jotform
FormSubmit
Wufoo
Google Forms
Converterer
PDFShift
DocRaptor
pdflayer
HTMLEmail.io
PDFCrowd
Templates by Email Monster
Api2Pdf
Basin automagically collects form submissions, blocks spam, sends email notifications, and triggers integrations with connected apps โ saving you the hassle of building and maintaining your own form backend API.
Converterer (formerly Paperplane) is a REST API for file conversion and website capture, built for developers and no-code workflows.
File conversion: convert documents, spreadsheets, presentations, images, audio, and video across 300+ format pairs: DOCX to PDF, PDF to DOCX, XLSX to CSV, PNG to WebP, HEIC to JPG, MP4 to GIF, WAV to MP3, and hundreds more. Upload a file or pass a URL, and the converted file is delivered to built-in storage or your own bucket.
Website capture: render any URL as a pixel-perfect, print-ready PDF with a real headless Chromium engine, the same rendering path that has powered Paperplane since 2018. Page size, margins, headers and footers with page numbers, HTTP auth, and wait conditions for JavaScript-heavy pages are all parameters on a single call.
Built for developers: plain REST with curl-friendly endpoints, no SDK needed, just POST it. Code recipes for Python, Node.js, PHP, Laravel, Ruby, Go, Java, and plain cURL. Async jobs with signed (HMAC) webhooks, metadata passthrough, custom file names, and a synchronous capture endpoint when you want the PDF back in one request.
No-code and automation: drop conversion and capture into Zapier, Make, n8n, Power Automate, or Workato flows.
Storage your way: results land in the built-in destination with zero setup, or connect your own bucket (S3-compatible, Google Cloud Storage, Azure, and more).
Pricing: 100 free conversions a month, no credit card required, files up to 1 GB on every plan. Paid plans from $9.99/month including 2,500 conversions.
Formerly Paperplane (est. 2018): same team and infrastructure, expanded from HTML-to-PDF to full file conversion.
Basin ConvertererBasin is recommended for web developers, designers, and anyone building websites or web applications who need a straightforward solution for handling form submissions without the hassle of setting up a server.
Basin's answer
Basin combines the simplicity of a form backend with powerful lead intelligence and automation tools. In addition to collecting form submissions and blocking spam, Basin helps businesses qualify and enrich leads automatically.
Features like Lead Agent use AI to analyze incoming submissions and help teams prioritize high-quality leads. Basin also includes email verification and phone verification to ensure contact details are valid, reducing fake or low-quality submissions.
Beyond basic form handling, Basin offers partial submission capture, advanced spam protection, integrations, and built-in analytics, allowing teams to turn website forms into a reliable lead generation and automation pipeline โ without building or maintaining their own backend infrastructure.
Converterer's answer:
Two APIs under one plan and one allowance: file conversion across 300+ format pairs (documents, spreadsheets, presentations, images, audio, video) and website capture that renders any URL as a print-ready PDF with a real headless Chromium engine. Pricing is flat per conversion, so a 900 MB video costs the same as a 40 KB document, where most competitors bill credits or processing minutes that scale with file size. And there is no SDK to install: it is plain REST you can drive from cURL.
Converterer's answer:
Predictable cost and less integration work. Flat per-conversion pricing with files up to 1 GB on every plan means no surprise bills when documents get heavy. The free tier is a real recurring allowance, 100 conversions every month with no card, rather than a one-time trial. Integration is one POST request with HTTP Basic auth, HMAC-signed webhooks instead of polling, and delivery straight into your own storage bucket if you want it. The capture engine has been rendering PDFs in production since 2018, and we publish sourced, dated comparisons against competitors on our own site, including the cases where they are the better fit.
Converterer's answer:
Developers adding file conversion or document rendering to their products (invoices, reports, archives, media processing), and operations or no-code builders automating the same jobs through Zapier, Make, n8n, Power Automate, or Workato. Typical users are SaaS teams generating documents at scale and teams replacing self-hosted conversion stacks they no longer want to operate.
Converterer's answer:
Converterer started in 2018 as Paperplane, a focused HTML-to-PDF API built on headless Chrome. Customers kept asking for conversions that had nothing to do with HTML: DOCX to PDF, HEIC to JPG, MP4 to GIF. So the platform grew past its name, and in May 2026 it relaunched as Converterer: the same team and rendering engine, expanded to a full file conversion API with 300+ format pairs alongside the original website capture.
Converterer's answer:
Website capture runs on a real headless Chromium engine, so output matches what desktop Chrome renders, including web fonts, Flexbox, Grid, and JavaScript-heavy pages. The API itself is plain REST over HTTPS with HTTP Basic authentication and HMAC-signed webhooks, and output delivery integrates with standard object storage (S3-compatible, Google Cloud Storage, Azure).
Based on our record, Basin seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Another tool we use on the marketing site is Basin, which acts as a back-end form submission handler that isn't susceptible to client-side browser blockers or JavaScript errors, meaning we capture leads no matter what. Basin routes data to a RudderStack Webhook Source. - Source: dev.to / almost 5 years ago
I just use Basin https://usebasin.com. Source: almost 5 years ago
Usebasin.com (https://usebasin.com) The free tier on this Service only allows for 1 form and it also uses integrations with Zapier or Integromat to submit forms to Google Sheets. The third-party integration makes the setup more complex, because you also need an account at the integration partner and configure the integration to get your form to end up in Google Sheets. You can export all submissions to Excel or... - Source: dev.to / over 5 years ago
Formspree.io - Just send your form to our URL and we'll forward it to your email.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Forminit - The complete headless backend API for your </form>
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
pdflayer - Free, powerful HTML to PDF API supporting both URL and raw HTML conversion. Unlimited document size, lightning-fast and compatible PHP, Python, Ruby, etc.
