We’re publishing six new tools today that we’ve been using in our research workflows. They’re all browser-based, so you don’t need to install anything. They’re also in beta, which means they might have bugs, but they work for what we need them for.
The tools cover data conversion, text formatting, and list comparison. Here’s what’s available:
CSV ↔︎ JSON Converter - Converts between CSV and JSON formats. Handles complex CSV files with nested data and properly escapes special characters. We built this because we kept running into CSV files that didn’t convert cleanly to JSON, especially when they had nested structures or special characters.
JSON Formatter - Formats, minifies, validates, and beautifies JSON. It has syntax highlighting and will tell you if your JSON is broken. Useful when you’re working with API responses or trying to debug JSON files.
JSONL to CSV Converter - Converts JSONL (JSON Lines) files to CSV. This one’s particularly useful if you’re working with LLM outputs or log files that come in JSONL format.
List Compare - Compares multiple lists with interactive Venn diagrams. You can see what’s overlapping between lists and click on regions to see the actual items. We use this a lot when comparing datasets or checking for duplicates across different sources.
Text Normalizer - Cleans up text by removing extra whitespace, normalizing line breaks, and handling special characters. Handy when you’re working with messy text data from different sources.
Text Case Converter - Converts text between different case formats - uppercase, lowercase, title case, sentence case, and a few others. Simple but useful when you need to standardize text formatting.
All of these tools are available on the InfoEpi Tools page. They’re free to use and run entirely in your browser. If you run into issues or have suggestions, you can report them on GitHub.
These tools grew out of problems we kept hitting in our work. If they’re useful to you too, great. If not, that’s fine - they’re here if you need them.