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redditmetis.com
Reddit profile analyzer that summarizes user activity, interests, subreddits, and comment patterns.
followerwonk.com
Searches Twitter bios and profiles to find accounts by keywords, interests, locations, or roles.
searchmy.bio
Searches Instagram bios by keyword to find public profiles, interests, and creator niches.
change.org
Campaign page inviting support for an open letter defending the Internet Archive.
raj457036.github.io
Calculator for converting and evaluating infix, postfix, and prefix expressions.
howlongtoread.com
Reading-time calculator for estimating how long a book or text will take to read.
stepbystepml.com
Free online machine learning calculators. Input your dataset and watch algorithms like K-Means, Minimax, and KNN get solved step-by-step for CS exams.