
LucidChart
yEd
OmniGraffle
Dia
PlantUML
Visio
Miro
Online diagramming application

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, draw.io seems to be more popular. It has been mentioned 716 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | drawio.com | codekithub.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Germany | — |
| Listed in |
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.
draw.io - Draw diagrams in the cloud or as an AppImage
More videos
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 draw.io 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 draw.io 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.


The mission of Diagrams.net is to “provide free, high quality diagramming software for everyone.” To follow through on this mission, the Diagrams.net team says, “When companies pay us money it should be because we add...
Where do you even begin with Diagrams.net, formerly known as Draw.io? Besides being free of charge, it also has a low learning curve, so anyone can quickly start creating diagrams or whiteboards. Many people use...
There are many generic diagramming tools that can be used to design software such as diagrams.net (formerly draw.io), Miro, or Lucid Charts. These generic tools do allow a lot of flexibility but end up costing you...
We have no reviews of CodeKitHub yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Draw.io (available at drawio.com) is an online and offline tool that lets you create various types of diagrams, including:. - Source: dev.to / over 1 year ago
During my college days I used to use Drawio to draw wireframes and flowcharts. When I found that there is a VS Code extension that allows me to do it in the IDE it was a no brainer. I have found it is also useful whenever I am screen... - Source: dev.to / almost 2 years ago
Glad you like it! :D Feel free to reuse/edit it for the Steam page if you want. Also happy to send you the draw.io file if you'd like :). Source: over 3 years ago
Tracking CodeKitHub since Jul 2026.
When comparing draw.io and CodeKitHub, you can also consider the following products.

LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
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10015.io is an all-in-one toolbox offering many tools from various categories.
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yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.
Compare yEd to draw.io or CodeKitHub:

Fast developer tools that process your input locally in your browser. No account required.
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OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.
Compare OmniGraffle to draw.io or CodeKitHub:
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.
Compare CodeSwissKnife to draw.io or CodeKitHub: