
MobaXterm
KiTTY
ConEmu
iTerm2
GNOME Terminal
Gnome Terminator
PowerShell
Popular free terminal application. Mostly used as an SSH client.

DocRaptor
MailMergic
PDF Generator API
Doczilla
wkhtmltopdf
DocuSign
HTML PDF API
PDF filling API that makes it easy to fill out PDF forms and convert HTML to PDFs

Which is more popular?
Based on our record, DocSpring seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | chiark.greenend.org.uk | docspring.com |
| Pricing | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2017 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of PuTTY yet.
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,...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
PuTTY is recommended for system administrators, developers, network engineers, and anyone who needs to perform remote command-line operations on a computer or server using the SSH protocol. It is particularly useful for users who are working on Windows systems.
No analysis of DocSpring yet.
Walkthroughs and reviews on video.
MASSIVE STORE PUTTY REVIEW!
More videos
No DocSpring videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing PuTTY and DocSpring.
DocSpring's answer:
Ruby on Rails, React, AWS
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.
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.
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.
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.
DocSpring's answer:
Share your experience with using PuTTY and DocSpring. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Instead of a full-fledged PuTTY alternative, SuperPuTTY is an add-on that changes how PuTTY looks. It also brings several additional features that are missing from the original PuTTY implementation.
SuperPuTTY requires you to install the original PuTTY for the application to install and run. Besides that, the SuperPuTTY is an advanced PuTTY version with secure SSH connection protection with SCP and SFTP file...
Putty is a popular SSH and telnet client for Windows. It's lightweight, fast, and easy to use. Putty offers all the basic features you need for remote desktop access, including SSH, telnet, rlogin, and raw TCP...
We have no reviews of DocSpring yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Tracking PuTTY since Mar 2021.
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... - Source: Hacker News / over 1 year ago
For programmatic filling of PDFs, have a look at DocSpring: https://docspring.com. - Source: Hacker News / over 2 years ago
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... - Source: Hacker News / about 3 years ago
When comparing PuTTY and DocSpring, you can also consider the following products.

Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
Compare MobaXterm to PuTTY or DocSpring:

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
Compare DocRaptor to PuTTY or DocSpring:

KiTTY is a fork from version 0.70 of PuTTY. It adds extra features to PuTTY.
Compare KiTTY to PuTTY or DocSpring:

Effortless Mail Merge for PDFs — Generate, personalize, and send documents in minutes, not hours.
Compare MailMergic to PuTTY or DocSpring:

ConEmu-Maximus5 is a full-featured local terminal for Windows devs, admins and users. Get better console window with tabs, splits, Quake style, copy+paste, DosBox and PuTTY integration, and much more.
Compare ConEmu to PuTTY or DocSpring:

Generate PDF documents from templates and JSON data. Enable your users to create PDFs and manage document templates using a browser-based drag-and-drop editor!
Compare PDF Generator API to PuTTY or DocSpring: