Quick tools.
Zero friction.
Every small utility a developer — or anyone else — needs. Fast, private, and free. No accounts, no clutter, no waiting.
● Fast — no page bloat● Private — runs in-browser● Free — no sign-up
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All 35 tools →AaGroß-/Kleinschreibung13 Schreibweisen umwandelnAaText-TransformerText in schicke Unicode-Stile umwandeln — fett, kursiv, umgekehrt, Blase & mehr⇋Suchen & ErsetzenText mit Regex-Unterstützung suchen und ersetzen≡Zeilen-ToolsTextzeilen sortieren, mischen, filtern und bearbeiten⌊⌋Text-ExtraktorE-Mails, URLs, Telefonnummern und mehr extrahieren⧉String-GeneratorLorem Ipsum, UUIDs, Passwörter und Zufallsdaten erzeugen∑Text-StatistikText analysieren und detaillierte Statistiken erhalten{ }JSON-FormatterJSON formatieren, minifizieren und als Baum erkunden
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InstantPages ship lean and render on the edge. Tools respond as you type.
Private by defaultMost tools run entirely in your browser. Your data never leaves the tab.
Free, alwaysEvery tool is free. Tasteful, clearly-marked ads keep the lights on.
No sign-upOpen a tool, use it, leave. History stays on your device if you want it.
The fast, free online toolbox
FlinkTools is a growing library of 35+ online utilities for text, encoding, encryption, validation, networking, math, conversion, images and passwords. Every tool lives on its own fast page, works on any device in six languages, and — wherever possible — processes your data locally in your browser instead of on a server.
“Flink” means quick and nimble — that's the whole product. Press ⌘K anywhere to jump to any tool.