# Free Interview Prep Tools

Source: https://www.techinterview.org/tools/
Updated: 2026-07-02 · techinterview.org

tools

Free, no-login tools for interview prep and the job search. Everything runs in your browser — nothing is uploaded or stored.

[Study Plan GeneratorTell it your hours per week and timeline; get a paced, week-by-week coding-interview plan across the patterns that matter.](/study-plan/)[Resume / ATS CheckerScore your resume for ATS-readiness and keyword match against a job description. Specific fixes, all in-browser.](/resume-checker/)[Total Comp CalculatorSee your real year-by-year total comp — base, bonus, equity vesting, sign-on — and compare two offers side by side.](/total-comp-calculator/)[Big-O VisualizerWatch each complexity class grow with input size, with exact operation counts and a feasibility read at any n.](/big-o-visualizer/)[STAR Answer BuilderStructure a behavioral answer — Situation, Task, Action, Result — and get instant feedback on length, ownership, and impact.](/star-method-answer-builder/)