
Notion
Logseq
Joplin
Evernote
Roam Research
Bear
Typora
A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.

CyberChef
DevToys
JSON-Formatter.app
CodeTray.dev
CodifyFormatter.org
Devrian.in
DuskTools.app
Fast, private developer tools in your browser. JSON formatter, Regex tester, Cron generator, and 17 more.

Which is more popular?
Based on our record, Obsidian seems to be more popular. It has been mentioned 1530 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | obsidian.md | codeutil.dev |
| Pricing | ||
| Company | Startup from the United States | — |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Obsidian yet.
CodeUtil.dev is a collection of 20+ browser-based developer tools. JSON formatter & validator, regex tester, cron expression generator, Base64 encoder/decoder, JWT debugger, URL parser, hash generator, and more. Everything runs client-side — no data leaves your browser. No sign-up needed,...
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
OBSIDIAN: Getting Started, Facts & Pricing
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Obsidian and CodeUtil.dev.
CodeUtil.dev's answer:
CodeUtil.dev runs entirely in the browser — all processing happens on your device, so your data never touches a server. It bundles 20+ tools (JSON, regex, Base64, JWT, cron, hashing, and more) under one roof with zero sign-up. Just open the page and start working.
Share your experience with using Obsidian and CodeUtil.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


One thing to note: Notion bills itself as an Evernote competitor for personal users. It can be—but it's too much for most people, and its offline functionality isn't the best. If you love the idea of Notion, go right...
This app is the kind of thing that, if you’re into it, will have you exploring its various ins, outs, and add-ons for days and weeks on end. Obsidian uses the Markdown format for its notes (which means they can be...
However, it's important to note that Obsidian's whiteboard functionality is not as robust as dedicated collaboration tools. While it lacks real-time basic collaboration features, Obsidian compensates with its vibrant...
We have no reviews of CodeUtil.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


The first time I downloaded Obsidian was about two years ago and I really liked the concept of storing everything locally in simple markdown files without unnecessary clutter. - Source: dev.to / about 16 hours ago
The agents remember with Engram, but I need to remember too. Obsidian is my second brain: ideas, projects, and resources in one place. - Source: dev.to / 7 days ago
Obsidian, homepage (local plain-text Markdown storage, offline access, links/graph, featured community plugins). - Source: dev.to / 7 days ago
Tracking CodeUtil.dev since Mar 2026.
When comparing Obsidian and CodeUtil.dev, you can also consider the following products.

All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
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Logseq is a local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base.
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A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
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json-formatter.app is a free online tool that offers one-click copying, direct file conversion, and downloads. With open-source code and multilingual support, it features JSON beautification and parsing, as well as conversion to other formats like XM
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