WinMerge / winmerge

WinMerge is an Open Source differencing and merging tool for Windows. WinMerge can compare both folders and files, presenting differences in a visual text format that is easy to understand and handle.

citizenlab / test-lists

URL testing lists intended for discovering website censorship

tilo / smarter_csv

Fastest end-to-end CSV ingestion for Ruby (with C acceleration). SmarterCSV auto-detects formats, applies smart defaults, and returns Rails-ready hashes for seamless use with ActiveRecord, Sidekiq, parallel jobs, and S3 pipelines — even for messy user-uploaded real-world data.

2vchs / vocab-forge-flask

Flask Vocabulary Trainer 2026: Best Open-Source App to Build Your Word Power Fast

rhpaiva / cssv

CSSV is CSV data with a CSS stylesheet at the top of the same file. One plain-text file renders as a styled HTML table in any browser.

tooladda-online / csv-to-json-converter

CSV to JSON Converter — Paste, upload, drag & drop, or import CSV from a URL and get clean, valid JSON instantly — with spreadsheet preview, live validation, tree & raw views, column mapping, and batch conversion. Free on ToolAdda.online.