Free browser-based utilities

Small tools,
built to just work.

No sign-up, no server round-trip. Everything here runs locally in your browser. We are adding more over time.

DNS checker

Look up A, AAAA, MX, TXT, and other records for any domain, with optional auto-refresh. Checked live through Cloudflare's public resolver.

Convert between CSV, TSV, XLSX, JSON, XML, and SQL insert statements. Drag a file in, pick a format, download the result.

Generate strong, random passwords. Tune the length, character types, and exclude anything a fussy password field will not accept.

Generate a QR code from any text or link, with your own logo dropped in the middle. Match your brand colours, and download it as a PNG.

Generate RFC 9562 compliant UUIDs: v1, v4, v6, v7, or a Microsoft-style GUID. Copy one instantly, or generate a batch and download it as a file.

Your public IPv4 and IPv6 address, plus a map location, ISP, and network details, looked up live with nothing sent to dabl.dev.