
SmallDevTools
CyberChef
CodeSwissKnife
Cryptii
DevToys for Mac
iLovePDF
RegExr
30 free developer and SEO tools that run in your browser

CyberChef
IT Tools
10015.io
CodeSwissKnife
JSONFormatter.org
JSONLint
A.Tools
A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.

Which is more popular?
Based on our record, DevToys seems to be more popular. It has been mentioned 16 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devtoolcore.com | devtoys.app |
| Pricing | ||
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


DevToolCore is a collection of 30 free browser-based tools for developers and SEO practitioners. The JSON tools format, validate, and minify payloads. The PDF tools compress documents to exact size limits for upload portals and count words without uploading the file. Image tools hit exact KB...
No description of DevToys yet.
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 DevToolCore yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No DevToolCore videos yet. You could help us improve this page by suggesting one.
DevToys - Review and How to Install | The Swiss Army Knife for Developers
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing DevToolCore and DevToys.
DevToolCore's answer
Thirty utilities in one place, all running locally in the browser, with no accounts anywhere.
DevToolCore's answer
One bookmark replaces a dozen single-purpose sites, and nothing you paste into it gets uploaded.
DevToolCore's answer
Developers and SEO practitioners who need quick utility work without installing anything.
DevToolCore's answer
A Java backend serving a static client. Every tool's logic runs client-side in JavaScript.
DevToolCore's answer
It grew out of small recurring needs, cleaning up JSON or hitting a portal's PDF size cap, and a preference for tools that keep files in the browser.
Share your experience with using DevToolCore and DevToys. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevToolCore since Aug 2026.
There are lots of these, but this is the first that I've seen that focused on frontend dev a bit more. I've saved it to my list of tools for reference. Here's another with a more local / backend / IT flavor: https://it-tools.tech I have... - Source: Hacker News / 9 months ago
Think of DevToys as the developer equivalent of a multi-tool. It’s a desktop app with dozens of handy utilities. - Source: dev.to / about 1 year ago
Devtoys is great and open-source and .NET and cross-platform * https://devtoys.app/ and in context to the thread files-community/files is great and open-source and .NET and cross-platform * https://files.community/. - Source: Hacker News / almost 2 years ago
When comparing DevToolCore and DevToys, you can also consider the following products.

Handy developer tools with a delightful interface
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IT Tools is a free and open-source collection of handy online tools for developers & people working in IT.
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Feature-packed developer toolkit. Includes text conversion, encoding, UUID generation, cryptography, color conversion, JSON/XML formatting, and more for simplified, efficient development tasks without online data transmission.
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10015.io is an all-in-one toolbox offering many tools from various categories.
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Web app and framework offering modular conversion, encoding and encryption
Compare Cryptii to DevToolCore or DevToys: