Eval
Eval lets players type mathematical expressions into chat and receive the computed result inline.
What it does
Players can parse mathematical expressions directly in chat, and inline parsing lets an expression sit inside a longer message. Variables can be stored for later equations, deleted with a command, and listed to show what is currently defined. The start and end markers that wrap an expression can be changed, and inline parsing can be switched off.
Eval is released for Fabric, Forge and NeoForge across 13 release versions, 1.20.1 – 1.21.11, under a custom license. Its environment is not stated on the Modrinth page, and its free use in packs is noted by the author.
Key features
Chat expression parsing
Typed mathematical expressions in chat are evaluated and the result is shown in the message.
Stored variables
Values can be saved as variables and reused in later equations, and defined variables can be listed or removed.
Adjustable markers and inlining
The pattern that marks an expression can be changed, and inline parsing can be turned on or off.
Compatibility
Latest build for each game version and loader.
1.21.x12 of 12 versions with builds
1.20.x1 of 1 version with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Which loaders does Eval support?
Under what license is Eval released?
More from ReclipseTheOne
What the author says
But you can also store variables for more advanced and easier equations Variables can be deleted via /eval delvar <var name> and you can show all defined variables through /eval vars.
Official listing
- Modrinth page
- modrinth.com/mod/eval
- Owner
- ReclipseTheOne
- Published
- 2025-12-16
- Updated on Modrinth
- 2026-01-23
- Facts verified
- 2026-10-15