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Free online developer tools: JSON formatter, PDF merger, image compressor, Base64 encoder, UUID generator, and 160+ more. No signup required. 100% client-side processing keeps your data private and secure.

TinyWow
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File Converter
A free web app that converts video files, allowing you to change the video format, resolution or...

Which is more popular?
Based on our record, 123apps seems to be more popular. It has been mentioned 11 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | toolz.dev | 123apps.com |
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What each product offers, as listed by its team.


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


No analysis of Toolz.dev yet.
Overall verdict
Why this product is good
Recommended for
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123apps
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Toolz.dev and 123apps.
Toolz.dev's answer
Speed and privacy. Traditional utility sites force you to navigate through ads, pop-ups, and slow load times. Toolz.dev eliminates this friction. Because it requires no account and processes tools rapidly, developers can format JSON, test Regex, or encode Base64 without breaking their flow or worrying about pasting sensitive data into unverified web forms.
Toolz.dev's answer
Toolz.dev consolidates over 160 essential developer and everyday utilities into a single, unified interface that is accessible with just one keystroke. Unlike scattered bookmarks or ad-heavy web apps, it offers instant search, execution, and saving capabilities completely friction-free—without ever requiring an account.
Toolz.dev's answer
Our primary audience includes software developers, engineers, data scientists, and technical creators who frequently rely on micro-utilities (like formatters, encoders, calculators, and translators) to get their daily work done efficiently.
Toolz.dev's answer
We were tired of Googling "JSON formatter" or "Base64 encoder" multiple times a day, only to land on cluttered websites that slowed down our workflow. We wanted a comprehensive, lightning-fast toolkit that lived entirely out of the way until the exact moment we needed it. We built Toolz.dev to be the ultimate, accessible-in-a-keystroke utility belt we wished we had.
Toolz.dev's answer
Toolz.dev is built using modern web technologies like React/Next.js and styled with Tailwind CSS to ensure a clean, responsive UI. We heavily utilize client-side processing for our tools to ensure maximum speed and data privacy for our users.
Toolz.dev's answer
Share your experience with using Toolz.dev and 123apps. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Toolz.dev since Aug 2026.
Online resource might be useful: https://123apps.com/. Source: over 3 years ago
You can use https://123apps.com to avoid all that watermark bullshit, or just download a crack software or something. Source: over 3 years ago
Then, crop the video using an online video cropper (i use 123apps.com) to remove the frame and the watermark leaving the video you made with no watermark. Source: over 3 years ago
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