string.is is a free, open-source, privacy-friendly toolkit with about 50 converters for encoding, formatting, and inspecting text strings.
string.is is a browser-based, open-source toolkit that bundles roughly 50 string converters and formatters into one page. Users paste in text and the tool attempts to detect its format automatically, then offers relevant conversion or inspection options.
The project is maintained on GitHub under the handle recurser and is built around explicit privacy commitments: no cookies are set, a strict content security policy is enforced, and dependencies are kept minimal by design.
The core feature set is the collection of roughly 50 converters and formatters covering common developer needs such as encoding and decoding, case conversion, and format inspection, all accessible from a single web page without an account.
string.is is completely free to use, with no paid tiers, subscriptions, or account requirements, consistent with its open-source, no-tracking design philosophy.
string.is is a free, open-source online toolkit that offers around 50 converters and formatters for working with text strings.
Yes, string.is is completely free to use with no paid tiers or subscriptions.
Yes, its source code is publicly available on GitHub under the handle recurser.
The site states it does not set cookies and is built around privacy-friendly principles, though users should still avoid pasting highly sensitive data into any third-party web tool.
It offers roughly 50 converters and formatters covering common developer tasks like encoding, decoding, case conversion, and format inspection.
It is maintained as an open-source project by a developer known on GitHub as recurser.
Because the code is open source on GitHub, technically inclined users can review or self-host it, though the primary way to use it is the hosted site at string.is.
The site emphasizes no cookies and a strict content security policy, but as with any online tool, users should avoid pasting highly sensitive or confidential data.