FitTractor checks any compact or sub-compact tractor against any three-point or front-mount implement across five specifications: hitch category, minimum PTO horsepower, PTO speed, implement weight against three-point lift capacity, and sub-compact clearance. Front-mount attachments add three more checks: loader presence, quick-attach type, and hydraulic remotes. Every tractor and implement record is sourced from manufacturer documentation, with the source link and verification date published on the record. The database currently holds 197 tractors from 15 to 75 PTO HP and 189 implements. Results return one of three verdicts, full match, compatible with notes, or incompatible, and every note states which specification produced it and by what margin. The tool is free, requires no account, and sells nothing. Where a manufacturer figure could not be verified, the field is left empty rather than estimated.