Software Alternatives, Accelerators & Startups

RequestBin VS DocSpring

Compare RequestBin VS DocSpring and see what are their differences

RequestBin logo RequestBin

RequestBin.com gives you a URL that collects requests you send to it so you can inspect them in a...

DocSpring logo DocSpring

PDF filling API that makes it easy to fill out PDF forms and convert HTML to PDFs
  • RequestBin Landing page
    Landing page //
    2023-08-23
  • DocSpring PDF Template Editor
    PDF Template Editor //
    2025-02-26
  • DocSpring HTML Template Preview
    HTML Template Preview //
    2025-02-26
  • DocSpring HTML Template Editor
    HTML Template Editor //
    2025-02-26
  • DocSpring Auto-generated Web Form
    Auto-generated Web Form //
    2025-02-26
  • DocSpring E-Signatures
    E-Signatures //
    2025-02-26
  • DocSpring View Submissions
    View Submissions //
    2025-02-26
  • DocSpring View API Request Logs
    View API Request Logs //
    2025-02-26
  • DocSpring Postman Collection
    Postman Collection //
    2025-02-26

We provide a PDF filling and generation API:

  • Upload your PDF to our visual template editor to set up form fields and data types
  • Post JSON to fill out existing PDF forms with data
  • Generate editable PDF forms, or overlay static data on top of fields
  • Create HTML/CSS templates with Liquid fields, then post JSON to generate PDFs
  • Use our merge API to combine multiple PDFs into a single document

PDF generation doesn't need to be complicated or take weeks of engineering time. Use our battle-tested service to start filling out PDFs in minutes.

RequestBin

Pricing URL
-
$ Details
-
Release Date
-

DocSpring

$ Details
freemium $49.0 / Monthly (Starter - 50 PDFs / mo)
Release Date
2017 October
Startup details
Country
United States
State
Delaware
City
Newark
Founder(s)
Nathan Broadbent
Employees
1 - 9

RequestBin features and specs

  • Ease of Use
    RequestBin provides a simple interface to quickly set up an endpoint to capture HTTP requests, making it easy for developers to debug webhook implementations without complex setup.
  • Real-time Monitoring
    It allows users to view the requests in real-time, enabling immediate analysis of incoming data at the endpoint, which is helpful for debugging and testing.
  • No Setup Required
    Users can create a new RequestBin endpoint instantly without any need for server configuration, simplifying testing processes.
  • Privacy and Security
    Although basic, RequestBin provides mechanisms to ensure some level of security by enabling endpoints to be private, so only those with the link can access the data.
  • Free Tier Availability
    RequestBin offers free-tier access, allowing users to try and use the service without an initial financial commitment, which is useful for small projects or individual developers.

Possible disadvantages of RequestBin

  • Limited Functionality
    RequestBin may lack advanced features necessary for complex testing or detailed analysis, such as request transformation or integration with other tools.
  • Temporary Data Storage
    Data from captured requests is stored temporarily and may be lost after a short period, which can be a limitation for users needing persistent logs.
  • Security Concerns
    Despite privacy settings, data can potentially be exposed if endpoint URLs are shared, leading to security concerns especially for sensitive information.
  • Rate Limits
    RequestBin may impose rate limits on the number of requests processed, which can restrict usage for high-throughput testing scenarios.
  • Dependency on External Service
    Relying on an external service means depending on its uptime and reliability, which could be a risk if the service experiences downtime or other issues.

DocSpring features and specs

  • Automated PDF Generation
    DocSpring allows users to automate the generation of PDFs by filling out templates with data. This can significantly reduce the time and effort needed to create documents.
  • API Integration
    DocSpring offers a robust API, which allows developers to integrate PDF generation into their own applications easily, enhancing productivity and workflow automation.
  • Flexible Templates
    The platform supports flexible and customizable templates, enabling businesses to maintain brand consistency while meeting specific document formatting requirements.
  • Secure Data Handling
    DocSpring is SOC 2 Type II compliant. We ensure data security through encryption and secure storage options, making it suitable for handling sensitive information.
  • Ease of Use
    The user interface is designed to be intuitive, making it easy for businesses to create and manage PDF templates without requiring extensive technical knowledge.

Category Popularity

0-100% (relative to RequestBin and DocSpring)
Developer Tools
100 100%
0% 0
PDF Tools
0 0%
100% 100
API Tools
100 100%
0% 0
Document Automation
0 0%
100% 100

Questions & Answers

As answered by people managing RequestBin and DocSpring.

Which are the primary technologies used for building your product?

DocSpring's answer:

Ruby on Rails, React, AWS

What makes your product unique?

DocSpring's answer:

DocSpring is built specifically for developers who need reliable, secure PDF generation in production. We combine PDF form filling and HTML-to-PDF in a single API, with a visual template editor, typed fields, and validation to catch issues early. Our product has a lot of power features and is built to handle very advanced forms. Our infrastructure is SOC 2 Type II compliant, battle-tested, privacy focused, and optimized for high-volume workloads, so you can ship PDF features quickly and then stop thinking about them.

Why should a person choose your product over its competitors?

DocSpring's answer:

DocSpring is designed for teams who need a powerful tool with all the features you need for complex forms and business logic. DocSpring supports structured JSON, typed fields, and array iterations, and many other advanced features, so your templates stay aligned with your real data model. You get powerful validation, a visual editor, strong observability, and an API that fits into modern engineering workflows, so you spend less time fighting PDFs and more time shipping product.

How would you describe the primary audience of your product?

DocSpring's answer:

DocSpring is built for engineering and product teams who manage complex documents in production: things like financial applications, insurance forms, healthcare and legal documents, HR and payroll workflows, and government-style forms.

What's the story behind your product?

DocSpring's answer:

I used to work at a payroll company (Gusto). We had built a similar in-house tool for filling out tax forms. I then built the first version of DocSpring (formerly named FormAPI) while I was living in Thailand. I built it to automate the filling out of visa application and visa extension forms, but realized that it could also be used for tax forms, real estate contracts, and any other kind of fillable PDF form.

Who are some of the biggest customers of your product?

DocSpring's answer:

  • SaaS services serving customers in the real estate, insurance, finance, and legal industries, among many others.

User comments

Share your experience with using RequestBin and DocSpring. For example, how are they different and which one is better?
Log in or Post with

Reviews

These are some of the external sources and on-site user reviews we've used to compare RequestBin and DocSpring

RequestBin Reviews

Tools for Testing Webhooks
RequestBin is an online webhook request sneaking tool. It has a very simple user interface so that developers can hop into the service straight away. If we want to check webhook request data, follow the steps below:

DocSpring Reviews

We have no reviews of DocSpring yet.
Be the first one to post

Social recommendations and mentions

Based on our record, RequestBin should be more popular than DocSpring. It has been mentiond 14 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.

RequestBin mentions (14)

  • Testing Webhooks and Events Using Mock APIs
    Visit Mockbin.io, Beeceptor or RequestBin and click "Create endpoint." These platforms instantly generate a unique URL that captures incoming HTTP requests. Copy the provided URL, something like https://your-webhook-endpoint.com/hook. - Source: dev.to / 11 months ago
  • Show HN: Rap song generate by Chat GDP based on recent NYTimes Article
    That's a fun example, because ChatGPT doesn't actually have the ability to fetch the contents of a URL. So it produced that summary (and the lyrics) entirely based on guessing the content of that URL! You can prove this to yourself by pasting in a URL to a site you own and watching the web server logs, or by using something like https://requestbin.com/. - Source: Hacker News / over 3 years ago
  • free-for.dev
    RequestBin.com โ€” Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe requests from webhooks and other services. - Source: dev.to / over 3 years ago
  • How to listen to webhooks
    But that said, if all your want to do is receive the hook and look at it, you can set it up using https://requestbin.com/ which will allow you to do exactly that. Source: about 4 years ago
  • Revue - Sendy sync: collecting the APIs
    Visit Request bin and create a new bin. Once created, copy the bin URL and paste it into the webhook field. - Source: dev.to / about 4 years ago
View more

DocSpring mentions (5)

  • Ask HN: What Are You Working On? (February 2025)
    I'm still working on DocSpring [1], originally launched on Hacker News in October 2017 under the name "FormAPI." It's a PDF generation API with a template editor UI for setting up fields on PDF forms. It makes it easy to turn complex tax and immigration forms into simple type-safe APIs with strong validations. I've been having a lot of fun with AI agents lately. Have tried a lot of them - Cline, Roo Code,... - Source: Hacker News / over 1 year ago
  • Launch HN: Onedoc (YC W24) โ€“ A better way to create PDFs
    For programmatic filling of PDFs, have a look at DocSpring: https://docspring.com. - Source: Hacker News / over 2 years ago
  • So you want to modify the text of a PDF by hand
    Great post. I've spend a lot of time reading through the PDF specification over the last ~5 years while building DocSpring [1], and I still feel like I've barely scratched the surface. Qpdf is a great tool. One of my other favorites is RUPS [2], which really lets you dig into the structure of a PDF. [1] https://docspring.com [2] https://github.com/itext/i7j-rups. - Source: Hacker News / almost 3 years ago
  • Workflow for automating document creation from a "database"
    Hi /u/pepeday, Iโ€™m the founder of a software product that I built to solve this problem. The service is called DocSpring: https://docspring.com We provide a platform that you can use to set up PDF templates, and automatically generate PDFs by filling in those templates with data from your database. Please feel free to send me a message and Iโ€™d be happy to speak with you and help you figure out a solution. I can... Source: almost 5 years ago
  • How do you fill copies of the same PDF certificates with Excel data?
    - https://docspring.com/ (super advanced features, a bit bloated). Source: almost 5 years ago

What are some alternatives?

When comparing RequestBin and DocSpring, you can also consider the following products

Webhook.site - Instantly generate a free, unique URL and email address to test, inspect, and automate (with a visual workflow editor and scripts) incoming HTTP requests and emails.

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

Beeceptor - Unblock yourself from API dependencies, and build & integrate with APIs fast. Beeceptor helps you build a mock Rest API in a few seconds.

Doczilla - Effortlessly create stunning PDFs and screenshots. Seamlessly store them in your own AWS or Google Cloud Storage bucket, putting the control and creativity right at your fingertips.

Request inspector - Debug web hooks, http clients

wkhtmltopdf - wkhtmltopdf is an open source (LGPL) command line tools to render HTML into PDF and various image...