ULID Generator
ULIDs are an alternative to UUID v4 that encode the current time in their first 10 characters, then 16 characters of cryptographic randomness. The big win: ULIDs sort by creation time as plain strings — which makes them perfect as database row IDs, log keys, or anywhere you want ordering for free. The 26-character Crockford-base-32 encoding is URL-safe and case-insensitive. Generate one or many at once (up to 100), or override the timestamp to produce a ULID for any past or future moment. Runs entirely in your browser.
Privacy
Runs entirely in your browser — nothing is sent to any server.
Cost
Free. No sign-up, no watermark.
Type
Generator
Related tools
Tools that work with the same formats — most users open one of these next.
QR Code Reader
Scan a QR code from any image and decode it to text — free, online, runs entirely in your browser.
QR Code Generator
Generate a QR code from any text, URL or contact data — pick error correction and scale, get a PNG.
File to Hex Dump
Convert any file's bytes to a hex dump (with ASCII sidecar), plain hex, C array or comma-separated bytes.
Hex to Binary File
Parse a hex dump or hex string back into a binary file — strips offsets, ASCII columns, prefixes and separators automatically.
Wi-Fi QR Code Generator
Generate a Wi-Fi QR code as a PNG — scanning it auto-joins the network. Supports WPA / WEP / open networks and hidden SSIDs.
vCard QR Code Generator
Generate a QR code that contains a digital business card (vCard) — scanning it lets the phone save the contact in one tap.
Frequently asked
Is ULID Generator free to use?
Yes. ULID Generator is completely free with no sign-up, no watermark, and no usage limits. Toolsly does not charge for any of its tools.
Do my files and data stay private?
Yes — ULID Generator runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How does ULID Generator work?
Open ULID Generator, paste or fill in the input fields, and the result updates instantly. Everything runs in your browser — no upload, no waiting.
Which browsers does ULID Generator support?
Any modern browser works — Chrome, Firefox, Safari, and Edge on desktop and mobile. ULID Generator uses standard web APIs and does not require any plugin, extension, or sign-up.