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Converterer VS FormSubmit

Compare Converterer VS FormSubmit and see what are their differences

Converterer

Developer-first file conversion and website capture API: 300+ format pairs across documents, images, audio, and video, plus pixel-perfect HTML-to-PDF rendering. Plain REST, no SDK required. 100 free conversions a month, files up to 1 GB.

Rating
0 reviews
Pricing
Freemium Free trial $9.99 / Monthly (2,500 conversions)
Alternatives Is it good?
FormSubmit

Connect your form to our form endpoint and we’ll email you the submissions. No PHP, Javascript or any backend code required.

Rating
0 reviews
Pricing
Free Free trial
Alternatives Is it good?
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 sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, FormSubmit seems to be more popular. It has been mentioned 23 times since March 2021.

social mentions
0 vs 23
PDF Tools popularity
100% vs 0%
alternatives listed
214 vs 172

Base details

Website, pricing, platforms and company facts side by side.

Converterer
FormSubmit
Website converterer.com formsubmit.co
Pricing
Freemium Free trial $9.99 / Monthly (2,500 conversions) Official pricing
Free Free trial
Platforms
REST API Generic HTTP API Curl
Browser Web REST API Google Chrome Firefox +2
Company Startup from Australia · 1 - 9 employees · 2018 —
Listed in
HTML To PDF PDF Conversion API PDF Tools PDF Converter Developer Tools API File Conversion PDF Document Management File Converter File Converters +8
Form Builder Surveys Web App Email Email Productivity +2

About Converterer and FormSubmit

In their own words, as submitted to SaaSHub.

Converterer
FormSubmit

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...

Read more about Converterer

FormSubmit sends your site's form submission directly to your inbox without the need of any backend code or SMTP setup.

Read more about FormSubmit

Features and specs

What each product offers, as listed by its team.

Converterer 8 features
FormSubmit 5 features
  • 300+ Conversion Pairs
    Convert documents, spreadsheets, presentations, images, audio, and video through one REST endpoint: DOCX to PDF, HEIC to JPG, MP4 to GIF, XLSX to CSV, and hundreds more.
  • Website Capture (HTML to PDF)
    Render any URL as a pixel-perfect, print-ready PDF with a real headless Chromium engine. Page size, margins, headers and footers with page numbers, and wait conditions for JavaScript-heavy pages are all parameters on one call.
  • No SDK Required
    Plain REST that works from any language: authenticate with HTTP Basic, POST a file or URL, done. Hand-tested code recipes for Python, Node.js, PHP, Laravel, Ruby, Go, Java, and plain cURL.
  • Signed Webhook Callbacks
    HMAC-signed notifications fire the moment a conversion finishes, so pipelines react instantly instead of polling for status.
  • Bring Your Own Storage
    Results land in built-in storage with zero setup, or deliver straight to your own bucket: S3-compatible, Google Cloud Storage, Azure, and more.
  • No-Code Integrations
    Drop conversion and capture into Zapier, Make, n8n, Power Automate, or Workato workflows without writing code.
  • Flat Per-Conversion Pricing
    A conversion costs the same whatever the file weighs, with files up to 1 GB on every plan. 100 free conversions a month with no card, and published plans from $9.99 up to 250,000 conversions a month.
  • Batch and Parallel Processing
    Submit multiple jobs at once and keep high-volume workflows moving; async job handling with completion callbacks is built in.
  • Ease of Use
    FormSubmit provides a simple and straightforward way to handle form submissions without requiring complex backend setup.
  • No Coding Required
    With FormSubmit, you can integrate form submission functionality into your website without writing any server-side code.
  • Free Tier
    FormSubmit offers a free tier which can be very useful for small projects or sites with low submission volume.
  • Email Notification
    FormSubmit sends form data directly to your email, making it easy to stay updated on submissions.
  • Privacy Focused
    FormSubmit does not store form data, which can be beneficial if you are concerned about data privacy.

Possible disadvantages

  • Limited Customization
    FormSubmit offers limited customization options compared to a full-featured backend solution.
  • Dependencies
    As a third-party service, FormSubmit introduces an external dependency that could affect your site's form submission reliability.
  • Feature Limitations
    Advanced features like storing submissions in a database or integrating with other APIs are not available with FormSubmit.
  • Email Deliverability
    Although FormSubmit sends form data to your email, the reliability of email deliverability can vary and might depend on spam filters.
  • Scalability
    For high-traffic websites, relying on FormSubmit may not scale well with your needs in terms of submission volume and processing.

Analysis

An editorial look at what each product does well and who it suits.

Converterer
FormSubmit

Overall verdict

  • Paperplane is considered a good tool for certain use cases.

Why this product is good

  • Paperplane is aimed at streamlining data collection and automating mail workflows, which makes it especially beneficial for organizations looking to enhance communication processes. It provides features that ease the management of outbound and inbound communications, making it efficient and convenient.

Recommended for

  • Businesses looking to automate their mail and communication processes.
  • Organizations that need efficient data collection and distribution tools.
  • Teams seeking to improve workflow efficiency in terms of document and message management.

Overall verdict

  • Yes, FormSubmit.co is considered a good solution for those seeking a simple, no-code form handling service. However, it may not be suitable for more complex form management needs or for those requiring extensive data processing or storage functionalities.

Why this product is good

  • FormSubmit.co is a popular and easy-to-use service for handling form submissions without requiring server-side code. It is particularly favored for its straightforward setup and the ability it gives to connect HTML forms directly to email addresses. FormSubmit.co also offers features like spam protection, custom redirects, and auto-responses, making it a convenient tool for developers and non-developers alike. It is well-regarded for its simplicity, cost-effectiveness, and reliability, especially for small projects or websites that need basic form-handling capabilities.

Recommended for

    FormSubmit.co is recommended for small business websites, personal projects, and anyone looking for a quick and easy way to collect form submissions via email. It's particularly useful for static websites or projects where integrating server-side scripts is not feasible or necessary.

Videos

Walkthroughs and reviews on video.

Converterer 1 video + Add
FormSubmit 1 video + Add

Video Review Paperplane New Era 9FIFTY Snapback Cap

Send emails from a HTML Contact Form

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Converterer
FormSubmit
100% 100%
PDF Tools
0% 0%
0% 0%
Form Builder
100% 100%
100% 100%
HTML To PDF
0% 0%
0% 0%
Surveys
100% 100%

Questions & Answers

As answered by people managing Converterer and FormSubmit.

What makes your product unique?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.

What's the story behind your product?

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.

Which are the primary technologies used for building your product?

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).

User comments

Share your experience with using Converterer and FormSubmit. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Converterer 0 mentions
FormSubmit 23 mentions

Tracking Converterer since Mar 2021.

  • Self-hosting forms, the sane way
    Much simpler solutions exist like https://formsubmit.co/ And for others who use the static hosts' free tiers for hobby projects, Cloudflare provides form submissions to your static pages, netliffy forms is quite generous too... - Source: Hacker News / over 2 years ago
  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    Formsubmit.co — Easy form endpoints for your HTML forms. Free Forever. No registration is required. - Source: dev.to / over 2 years ago
  • Slow loading when form is submitted using FormSubmit.
    So I am building my webpage and I am using FormSubmit https://formsubmit.co/ so people could contact me by using this form. I hosted my page on github pages and loading is very slow when I enter email and message in input boxes and click... Source: about 3 years ago

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Alternatives to Converterer and FormSubmit

When comparing Converterer and FormSubmit, you can also consider the following products.

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