
devtoolz.dev
DevNestTools
CodeKitHub
CodeTray.dev
DevToys
CodeSwissKnife
DeveloperTools.Tech
Free browser-based tools for formatting, encoding, decoding, conversion, generators and everyday software development tasks.
OpenClaw
Lovable
bolt.new
BASE44
Manus
Pickaxe
Softr
The agent-native computer, for the rest of us

Which is more popular?
Based on our record, Happycapy 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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Happycapy
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| Website | developertoolbox.tech | happycapy.ai |
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In their own words, as submitted to SaaSHub.

Developer Tool Box is a free collection of browser-based developer utilities for everyday software development. It provides tools for JSON formatting, Base64 conversion, UUID generation, URL encoding, hashing, and more, with additional utilities covering crypto, web, development, networking,...
No description of Happycapy yet.
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 DeveloperToolBox.tech yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No DeveloperToolBox.tech videos yet. You could help us improve this page by suggesting one.
HappyCapy Review - Run your AI Agents Online
How often each product is chosen within a category, 0–100% relative to the other.

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

Tracking DeveloperToolBox.tech since Sep 2026.
If you're building Claude agents and want to stop copy-pasting tool boilerplate, check it out: https://happycapy.ai. Free to browse; publishing requires an account. - Source: dev.to / 6 months ago
When comparing DeveloperToolBox.tech and Happycapy, you can also consider the following products.

DevToolbox is a free, no-signup collection of 148 client-side developer tools and 78 guides — a lightweight alternative to installing dozens of separate SaaS dev-tool apps.
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The AI that actually does things. Your personal assistant on any platform.
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Fast, free dev tools that run 100% client-side no signup
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The world's first AI Fullstack Engineer
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Free online tools: JSON formatter, password generator, QR code maker, calculators, converters and more. Fast, private, no login — everything runs in your browser.
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Prompt, run, edit, and deploy full-stack web apps
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