
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.

TestRail
Hotjar
Maze
Survicate
UserZoom
User Interviews
Alchemer
Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!

Which is more popular?
Based on our record, UserTesting.com seems to be more popular. It has been mentioned 101 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codekithub.com | usertesting.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from the United States · 500 - 999 employees · 2007 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodeKitHub yet.
UserTesting enables every organization to deliver the best customer experience powered by human insight. With UserTesting’s on-demand Human Insight Platform, companies across industries make accurate customer-first decisions at every level, at the speed business demands.
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 CodeKitHub yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No CodeKitHub videos yet. You could help us improve this page by suggesting one.
Testing out UserTesting.com (LEGIT SIDE HUSTLE?!?)
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeKitHub and UserTesting.com.
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 CodeKitHub and UserTesting.com. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of CodeKitHub yet. Be the first one to post
The best way to understand your users is to put yourself in their shoes. With UserTesting, see what your customers see when they use your products and dive into user feedback to build products they’ll use daily. 🎯
UserTesting is a UX research tool that allows users to gain user insights via video feedback. UX teams can use the UserTesting panel to hire testers and delegate tasks to uncover how users interact with their product.
Plus, users can not reach any visualized data on the UserTesting dashboard and this makes it rather difficult to understand what exactly is going on on a website.
Recommendations tracked on public social media and blogs since March 2021.


Tracking CodeKitHub since Jul 2026.
Lookback, Usability Hub (now called Lyssna) and Validately but have been spoiled by former employers who had the budget for usertesting.com so I'm pretty out of the loop on low-budget options. TIA! Source: almost 3 years ago
I need to recruit 5-6 parents/grandparents for a study and I'm having trouble finding a company I can use (aside from usertesting.com since they tailor to large companies and I'm doing freelance work). Every company I've come across... Source: almost 3 years ago
Anyone else having problems with the iOS UserTesting App? Mine just opens and shows the logo, and stays there. I can see multiple tests available on usertesting.com, but can't open the app. I have a iPhone 13, updated to 17.1. Source: almost 3 years ago
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