Zerethon Tools
Fast, privacy-friendly utilities. No signup. Most run entirely in your browser.
Format, validate, and minify JSON online. Free, no signup — your data never leaves your browser.
Open toolFormat and beautify SQL queries online. Supports MySQL, PostgreSQL, SQLite, SQL Server, Oracle, and BigQuery.
Open toolGenerate UUIDs online — v1, v4, v7, and Nil. Bulk generation up to 10,000. Free, no signup.
Open toolGenerate strong, cryptographically random passwords. Configurable length and character sets — runs in your browser.
Open toolConvert text between 14 cases — UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case, CONSTANT_CASE, and more.
Open toolEncode and decode Base64 text or files. Supports standard and URL-safe variants. Free, no signup.
Open toolEncode and decode URLs and query string parameters. Percent-encoding for safe transmission.
Open toolDownload YouTube thumbnails in all available resolutions. Just paste a video URL.
Open toolTest how your URL appears when shared on social media. Preview Facebook, Twitter, LinkedIn, and Slack cards.
Open toolCount words, characters, sentences, and paragraphs. Reading time, speaking time, and top keywords — instant.
Open toolGenerate Lorem Ipsum placeholder text — by paragraphs, sentences, or words. Optional HTML wrapping.
Open toolBuild, share, and grow on Zerethon Social
Free signup. Earn points, collect achievements, and connect with creators worldwide.