
SketchAR
Dance Reality
AirMeasure
Amazon AR view
Apple ARKit
DALL-E
Colornet
Make simple drawings in AR, by Google

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, Just a Line seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | experiments.withgoogle.com | codekithub.com |
| Pricing | — | |
| Platforms | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Just a Line 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 Just a Line and CodeKitHub. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I always thought Google's Just a Line experiment[1] was crazy cool and recently wanted to revisit it. But it hadn't been updated in 7 years So I upgraded all of the dependencies (including the latest version of Swift 5), added SwiftLint... - Source: Hacker News / about 1 year ago
Tracking CodeKitHub since Jul 2026.
When comparing Just a Line and CodeKitHub, you can also consider the following products.

Start drawing easily using augmented reality
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10015.io is an all-in-one toolbox offering many tools from various categories.
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Dance practice in augmented reality
Compare Dance Reality to Just a Line or CodeKitHub:

Fast developer tools that process your input locally in your browser. No account required.
Compare Bitty Coder to Just a Line or CodeKitHub:

Turn your phone into a ruler with the power of AR
Compare AirMeasure to Just a Line 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 Just a Line or CodeKitHub: