
JSON Formatter & Validator
DevTools Advanced
JSONFormatter.org
FreeFormatter
JSON Editor Online
SmallDevTools
TheDevTools
FOSS tools for developers

Otterly.AI
Profound
AEOptimer
Am I on AI
Attensira
AuditNOW
EcomHint
An AI-discoverability audit for ecommerce. See how visible your products are to ChatGPT, Claude, Gemini and Perplexity, plus the exact fixes. The SEO audit for AI shopping.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|
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|---|---|---|
| Website | developertools.tech | shelfgrader.com |
| 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.


Overall verdict
Why this product is good
Recommended for
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 DeveloperTools.Tech and ShelfGrader. For example, how are they different and which one is better?
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The JSON Formatter was created to help with debugging.
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Stay ahead by monitoring and your content & brand across major AI Search Platforms. With Otterly.AI, you can automatically track brand mentions and website citations on Google AI Overviews/AI Mode, ChatGPT, Perplexity, Gemini, and Copilot.
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A collection of developer tools in one place in your browser
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Profound helps brands gain visibility in AI-generated answers, optimize their presence in LLM-based answer engines, and stay competitive in the zero-click world.
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Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
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Automatically optimize your website for AI chatbots and search engines. Improve discoverability with zero code changes.
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