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Open source
24 alternativesFrink
Frink’s web interface accepts Frink expressions for lookup and calculation, with links to documentation, examples, and related tools.
About Frink
Frink's web interface is a browser page for entering Frink expressions for calculation, unit conversion, and lookup. Users type an expression in the "From:" box and click "Calculate." A value in the "To:" box is treated as the right-hand side of a conversion, so entering 10 meters in the "From" box and feet in the "To" box gives the same result as typing 10 meters -> feet in the "From" box.
The page states that Frink is case-sensitive and that unrecognized names can produce "undefined symbol" errors. It recommends reading the Frink documentation and sample calculations first. Variables set in the interface last only for the duration of a session. The interface is powered by Frink Server Pages. The page also mentions an applet-based alternative, which requires Java 1.3.1 or later.
Key features
- Evaluates Frink expressions entered in the From box
- Converts units using a To box or the -> conversion operator
- Lookup box finds the name Frink uses for a unit
- Typing ??term in the From box returns lookup information on a topic
- Variables can be set and kept for the duration of a session
Best for: People who want to run Frink calculations or unit conversions in a browser without installing software.
Good for
- The To box and the -> operator produce the same conversion result
- Unit name lookup is not case-sensitive
- Links to documentation, FAQ, and sample programs are on the page
Watch out for
- Frink is case-sensitive, so input must match its exact names
- Unrecognized names can produce "undefined symbol" or other errors
- The applet-based alternative requires Java 1.3.1 or later
Frink at a glance
- Website
- frinklang.org/fsp/frink.fsp
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Android, Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Frink FAQ
How do I convert units in the web interface?
Enter 10 meters in the From box and feet in the To box, or type 10 meters -> feet in the From box and leave the To box empty. Both give the same result.
How do I find the name Frink uses for a unit?
Type part or all of the word in the Lookup box and click Lookup. The lookup is not case-sensitive. You can also type ??moon in the From box and click Calculate for information on a topic.
What should I do if I get an undefined symbol error?
The page suggests reading the FAQ for common issues. Frink is case-sensitive, so check the spelling and capitalization of unit names.
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