
DevTools Advanced
FullStackToolkit
DevFinanceTools
JSON Formatter & Validator
AllDevToolsHub
Boop
DeveloperTools.Tech
120 free browser-based developer utilities. No sign-up required.

ChatGPT
HuggingChat
Gemini
Botpress
GPT4All
Khoj
Poe
Conversational AI for everyone.

Which is more popular?
Based on our record, Open Assistant.io seems to be more popular. It has been mentioned 64 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | devtoolstack.io | open-assistant.io |
| Pricing | ||
| Listed in |
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.


No analysis of DeveloperToolStack yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DeveloperToolStack and Open Assistant.io. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DeveloperToolStack since Aug 2026.
Https://open-assistant.io seems to have the same guardrails, as ChatGPT. Tried it on several prompts and it wouldn't comply. Source: about 3 years ago
I also suggest Open Assistant (https://open-assistant.io) which is not even filtered (whenever you trigger a moralist filter, it's because of its training data, and it's not on purpose). Source: about 3 years ago
To add to this if you want something for free or at least close to free, contribute to OpenSource projects like https://open-assistant.io/. Source: over 3 years ago
When comparing DeveloperToolStack and Open Assistant.io, you can also consider the following products.

A collection of developer tools in one place in your browser
Compare DevTools Advanced to DeveloperToolStack or Open Assistant.io:

ChatGPT is a powerful, open-source language model.
Compare ChatGPT to DeveloperToolStack or Open Assistant.io:

Free, no-signup developer tools for technical SEO: robots.txt, sitemap.xml and .htaccess generators, plus practical guides. Everything runs in your browser.
Compare FullStackToolkit to DeveloperToolStack or Open Assistant.io:

Open source alternative to ChatGPT. Making the best open source AI chat models available to everyone.
Compare HuggingChat to DeveloperToolStack or Open Assistant.io:

Free, no-signup calculators for the money side of building software and freelancing
Compare DevFinanceTools to DeveloperToolStack or Open Assistant.io:

Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.
Compare Gemini to DeveloperToolStack or Open Assistant.io: