
Miro
draw.io
Obsidian
tldraw
Kanboard
Whimsical
WBO
Excalidraw is a whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.

10015.io
Bitty Coder
CodeSwissKnife
ToolKitKE
devtoolz.dev
Code Beautify JSON Validator
FreeFormatter
Free online tools: JSON formatter, password generator, QR code maker, calculators, converters and more. Fast, private, no login — everything runs in your browser.
Which is more popular?
Based on our record, Excalidraw seems to be more popular. It has been mentioned 268 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | excalidraw.com | codekithub.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from the Czech Republic · 10 - 19 employees | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Excalidraw is an open-source virtual whiteboard focused on simplicity and collaboration. It provides a hand-drawn, sketch-style interface for brainstorming and visualizing ideas. Ideal for remote teams, educators, and developers, Excalidraw supports real-time collaboration and integrates with...
No description of CodeKitHub 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.


Overall verdict
Why this product is good
Recommended for
No analysis of CodeKitHub yet.
Walkthroughs and reviews on video.
Rapid Mockup Creation Using Excalidraw
No CodeKitHub 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 Excalidraw and CodeKitHub.
CodeKitHub's answer:
CodeKitHub's answer:
Compared to single-purpose sites like JSONFormatter.org or CodeBeautify that only handle one task, CodeKitHub covers the same ground plus image, PDF, QR, and calculator tools in one place — useful if you regularly switch between different tool types during a workday.
Unlike FreeFormatter (which recently shut down its service), CodeKitHub's tools require no backend at all — everything runs as static, client-side JavaScript, so there's no server cost pressure driving ads, paywalls, or future shutdowns of the kind that killed similar sites.
If you need a tool site in a language other than English — Spanish, French, German, Japanese, Korean, Chinese, and others — CodeKitHub is one of the few free tool sites that actually localizes the full interface rather than just running it through machine translation on top of an English-only tool.
CodeKitHub's answer:
CodeKitHub serves two overlapping groups:
Traffic data shows both groups in practice: technical tools (QR generator/decoder, Base64 encoder, JSON tools) draw developer-heavy referral sources like Hacker News and ChatGPT, alongside broader organic search traffic for everyday utility tasks.
CodeKitHub's answer:
CodeKitHub started as a small set of browser-based developer utilities and grew into a 120+ tool collection covering JSON formatting, encoding, image/PDF processing, calculators and more. The core principle from the start was that every tool should run entirely client-side — no backend, no data leaving the user's browser — which keeps the tools fast, private, and cheap enough to run without ads getting in the way. The site has since expanded to 13 languages to serve users beyond English-speaking markets.
CodeKitHub's answer:
Share your experience with using Excalidraw and CodeKitHub. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Looking at open source alternatives to Miro will give you powerful and flexible tools that can cater to different collaboration needs without the limitations of propietary software. In 2024,the best open source Miro...
As your system evolves, you must update your diagrams to reflect those changes. Because Excalidraw is a browser-based tool, you have to open a browser tab and make changes visually, which can be inconvenient. You also...
We have no reviews of CodeKitHub yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


I made a picture, hope this helps: https://excalidraw.com/#json=zfKWWn1h7GzdFca6RDdXl,plr_WeaCtvFxbjULFjq6zw Sorry it was confusing. - Source: Hacker News / 12 days ago
The format idea costs you nothing to adopt today: export from excalidraw.com with "Embed scene" on, commit the .excalidraw.png, reference it as a normal image. It renders everywhere and stays editable. - Source: dev.to / 4 months ago
Category Tool URL How I used it General AI assistant ChatGPT Https://chatgpt.com Breaking down concepts, simulating interviewers, reviewing answers AI writing / reasoning Claude Https://claude.ai Refining behavioral stories and... - Source: dev.to / 4 months ago
Tracking CodeKitHub since Jul 2026.
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Fast developer tools that process your input locally in your browser. No account required.
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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.
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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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