Practical tools for work and everyday life

Browse online utilities for development, data, images, and daily tasks — most run locally in your browser.

Popular tools

Timestampepoch ↔ date EncodeBase64 / URL / Unicode JSONformat / validate Diffline-by-line Unitscommon conversions Currencypopular currencies Passwordgenerate securely Sync TextWeb ↔ Mini Program sync

All tools

Timestampepoch ↔ date EncodeBase64 / URL / Unicode JSONformat / validate Diffline-by-line Unitscommon conversions Currencypopular currencies Passwordgenerate securely Portscommon ports Mirrorsregistry addresses ASCII0–127 table chmodpermissions Cronquick reference Brickscombination solver Compressshrink images Repairretouch images Sync TextWeb ↔ Mini Program sync QRgenerate & download Base64 Imgbase64 ↔ image