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

MLJAR
AnythingLLM
LM Studio
A desktop app for a first look at your data files. You ask in plain language, and the AI runs on your own machine. One-time license.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | developertools.tech | totsum.app |
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| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of DeveloperTools.Tech yet.
Totsum Data Explorer is a desktop app for a first look at your CSV, Excel, JSON and Parquet files: you ask questions in plain language, an AI that runs locally on your machine answers with previews, and a follow-up report hands your shortlist to an expert for validation. Can work on a computer...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


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


As answered by people managing DeveloperTools.Tech and Totsum.app.
Totsum.app's answer:
The AI runs on your own machine, and the answers leave as a report built to be checked by a person: the rows behind every chart, the query written out step by step, and a shortlist an expert can validate.
Totsum.app's answer:
People who work on data files they cannot upload: consultants and independent professionals under confidentiality agreements, and anyone who wants a first look at a file before handing it to an analyst.
Totsum.app's answer:
DuckDB for the data and llama.cpp for the model, both running inside the app on your own machine.
Share your experience with using DeveloperTools.Tech and Totsum.app. For example, how are they different and which one is better?
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