
Proto.io
Flinto
Zeplin
Balsamiq
Moqups
Axure
Framer
Pencil is an animation/drawing software for Mac OS X, Windows, and Linux.

JSON Formatter & Validator
DevTools Advanced
JSONFormatter.org
FreeFormatter
JSON Editor Online
SmallDevTools
TheDevTools
FOSS tools for developers
Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | sourceforge.net | developertools.tech |
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What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Pencil is recommended for freelancers, small development teams, educators, and students who require a straightforward solution for creating wireframes. It is also suitable for UX designers working on less complex projects or those who prefer an open-source alternative to more expensive commercial tools.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Amazon Basics #2 Pencil Review - ✎W&G✎
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How often each product is chosen within a category, 0–100% relative to the other.


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When comparing Pencil and DeveloperTools.Tech, you can also consider the following products.

Create fully-interactive high-fidelity prototypes in minutes that look and work exactly like your app should. Sign up for a free 15-day trial and get started.
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The JSON Formatter was created to help with debugging.
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The prototyping tool designers have been waiting for.
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A collection of developer tools in one place in your browser
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Collaboration app for UI designers & frontend developers
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Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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