What FPS Tester Is
FPS Tester provides browser-based utilities for people who want to inspect animation FPS, frame time, frame stability, low-frame behavior, refresh cadence, display motion, screen information, mouse event frequency, and visual reaction timing. The tools run locally in the page and need no account or download for their core functions.
The site stays within a connected topic: how frames are scheduled, how displays present motion, and how input events reach browser experiences. It is not a generic directory of unrelated converters. Each page serves a distinct diagnostic or educational intent and links to the methodology behind its result.
Why the Browser Boundary Matters
A web page has useful high-resolution timing and display-context APIs, but it cannot read every hardware or application signal. It can observe its own animation callbacks; it cannot see a separate game engine’s native frames. It can estimate refresh cadence; it cannot query every monitor controller directly. It can receive pointer events; it cannot interrogate mouse firmware.
Good tools label that boundary clearly. FPS Tester uses phrases such as browser-observed FPS, estimated refresh rate, browser-observed mouse event rate, and screen-to-input reaction time. When a measurement is primarily visual, such as tearing or motion clarity, the page presents an inspection pattern rather than inventing an automatic diagnosis.
How the Tools Are Built
Frame tools share a TypeScript measurement engine for filtering, means, medians, percentiles, lows, jitter, stability, spikes, formatting, and refresh matching. Raw requestAnimationFrame() intervals remain the source of truth. Warm-up values are excluded, hidden-tab runs are stopped before a gap can enter the sample, tail statistics have minimum sample thresholds, and continuous history is bounded.
The website is generated as static pages with lightweight client-side code only where a tool needs interaction. Charts use native canvas rather than a large chart library. Responsive layouts reserve tool space, keep controls touch-friendly, and cap high-density backing stores. Analytics hooks are disabled by default and inject nothing unless explicitly configured with a valid ID.
What Results Can Tell You
A result can describe the sampled browser session: its mean cadence, typical frame interval, slow tail, variability, or event pattern. It can help compare two controlled browser conditions, explain a visual concept, or point to a setting worth checking. Screen information can document a layout environment, and motion patterns can make a visual artifact easier to inspect.
Results do not establish universal hardware performance. They vary with browser, operating system, display assignment, power state, system load, tab visibility, input path, and human observation. A repeatable pattern is evidence for further investigation, not automatic proof of a defective component.
Editorial and Trust Principles
FPS Tester favors technical accuracy over an attractive keyword or impressive claim. Pages distinguish average FPS from frame stability, game rendering from browser cadence, Hz from FPS, and mouse hardware polling from delivered events. Method definitions are published and matched by unit tests. The site does not use fake testimonials, ratings, user counts, awards, certifications, or invented company history.
Explanations are written for people trying to make a real decision: which tool matches a question, what a result means, how to repeat it, and where it stops being reliable. Related links stay within frame performance, display behavior, and input responsiveness. Legal pages explain privacy and informational limits without claiming that internet infrastructure produces no logs.
Privacy and Accessibility by Design
Core calculations happen in the browser. Theme preference can be stored locally. No account is required. Optional Google Analytics and Microsoft Clarity integrations are controlled by environment settings and disabled in the distributed configuration; if enabled by an operator, the privacy page must be kept consistent with actual deployment and applicable consent requirements.
Controls use semantic buttons and labels, focus indicators remain visible, menus work by keyboard, major state changes have restrained announcements, and charts are accompanied by text metrics. Reduced-motion preference disables nonessential animation where practical, although users must intentionally start or view motion-oriented tools to perform their core purpose.
Learn More or Get in Touch
The methodology page contains the exact production formulas for mean FPS, percentiles, 1% low, stability, spike detection, refresh confidence, mouse events, and reaction timing. The disclaimer gathers the measurement boundaries in one place. Individual tool pages repeat the limitation closest to the relevant result so users do not need to find a distant legal note.
Use the contact page for corrections, accessibility problems, or reproducible tool bugs. A useful report includes the page, browser and version, operating system, display arrangement, steps, expected behavior, and observed result. FPS Tester does not provide a promise of individual hardware diagnosis, but precise reports help improve the browser utilities for everyone.