Free online tools that just work

View, edit and optimize SVG in your browser — click any element in the preview to jump straight to its code; export as JSX, data URI or PNG.

svg.may.tools

Free speech-to-text in your browser: live microphone dictation and audio file transcription with on-device AI. No uploads, no sign-up.

voice.may.tools

Estimate a home's rent-to-price ratio (rental yield) from rent, property fees, agent commission and taxes — solve the price from a target ratio, or the ratio from a price.

rental.may.tools

Read classic Chinese novels chapter by chapter with a full character index — who appears where, occurrence counts, and how everyone is related.

books.may.tools

Convert Unix timestamps to human-readable dates and back — local time, UTC, ISO 8601 and relative time.

ts.may.tools

Format, minify and validate JSON in your browser. Clear error messages with line and column numbers.

json.may.tools

Share files straight between your devices over the local network — open this page on both, pick files on one, download them on the other. Peer-to-peer in the browser; files never touch a server.

send.may.tools

Edit template strings with live variables — placeholders auto-detected, values update the result as you type.

tpl.may.tools