# TechTester > Free browser based tool hub for hardware testing and document generation keyboard checker, Arabic keyboard tester, Japanese keyboard checker, touchpad tester, spacebar counter, gamepad checker for PS5/Xbox/Nintendo, controller vibration test, stick drift test, gaming latency test (input lag + ping), mic tester, GPU benchmark, RAM speed test, laptop battery checker, and payslip generator. No signup, no download, 100% free forever. TechTester provides free browser based tools for hardware testing and document generation. All tools run locally in the user's browser no data is stored on TechTester servers. No registration required for any tool. Designed for gamers, IT professionals, HR teams, freelancers, and everyday users who need fast, reliable, free tools. All tools use standard browser APIs including the Web Gamepad API, Web Audio API, Battery Status API, WebGL, and KeyboardEvent interface. ## Free Online Tools - [Keyboard Checker](https://techtester.online/keyboard-checker/): Test every key on any keyboard in real time. Detects dead keys, stuck keys, and ghosting. Works on Windows, Mac, and Linux. No download required. - [Arabic Keyboard Checker](https://techtester.online/arabic-keyboard-checker-3/): The only dedicated free Arabic keyboard tester with full RTL support. Tests physical Arabic keyboard hardware not a virtual typing keyboard. Detects dead keys and stuck keys with full right to left display support. - [Japanese Keyboard Checker](https://techtester.online/japanese-keyboard-checker/): Free online Japanese JIS keyboard tester. Tests all 5 Japanese function keys including 半角/全角 (Hankaku/Zenkaku), 変換 (Henkan), 無変換 (Muhenkan), ひらがな/カタカナ, and 英数/かな. JIS vs QWERTY symbol guide and Windows/Mac fix guides included. - [Touchpad Tester](https://techtester.online/touchpad-tester/): Test laptop touchpad and trackpad gestures online free. Tap, double tap, two finger scroll, pinch zoom, and multi touch gesture detection. Windows and Mac fix guides included. - [Spacebar Counter](https://techtester.online/spacebar-tester/): Free spacebar speed test and counter. Measures CPS with 6 tier speed ranking (Turtle to Lightning). Detects spacebar chatter and double spacing faults. Fix guides for spacebar chatter and spacebar not working included. - [Gamepad & Controller Checker](https://techtester.online/gamepad-checker/): Test PS5 DualSense, Xbox Series X/S, Nintendo Switch Pro Controller, or any USB/Bluetooth gamepad. Detects button faults, trigger issues, and thumbstick drift in real time using the Web Gamepad API. - [Stick Drift Test](https://techtester.online/stick-drift-test/): Real time thumbstick drift detection using axis values with plain English severity guide (0.03/0.08/0.15 thresholds). Console specific fix guides for PS5, Xbox, and Nintendo Switch. Sony and Nintendo free repair programme information. - [Controller Vibration Test](https://techtester.online/controller-vibration-test/): Test PS5 haptic feedback, Xbox impulse trigger rumble motors, and Nintendo Switch HD Rumble in Chrome or Edge. 6 fixes for controller not vibrating included. - [Gaming Latency Test](https://techtester.online/latency-test/): Free gaming latency suite. Tests system input lag in milliseconds (click to screen), network ping to game servers (Cloudflare, Google, AWS Singapore, US East, EU West, South Asia), monitor refresh rate confirmation, and controller polling rate guide. Input lag and ping fix guides included. - [Mic Tester](https://techtester.online/mic-tester/): Free browser microphone tester. Live waveform, volume level in dB, frequency in Hz, device name, record and playback. 7 fixes for mic not working. Works on desktop and mobile including iOS and Android. - [GPU Tester](https://techtester.online/gpu-tester/): Free WebGL GPU benchmark. Detects GPU name and vendor, measures real time FPS, produces 0 to 10,000 benchmark score with 6 tier interpretation table. Stress test mode for thermal throttling detection. No FurMark download needed. - [RAM Tester](https://techtester.online/ram-tester/): Free browser RAM speed test. Shows total RAM, available memory, read and write speeds in MB/s, random access speed, and bandwidth score. Includes XMP/EXPO enabling guide and free OS tool recommendations (MemTest86, MemTest64, Windows Memory Diagnostic). - [Laptop Battery Checker](https://techtester.online/laptop-battery-checker/): Check battery level, charging status, and time remaining via W3C Battery Status API. Plus free OS guides for Windows powercfg battery report, Mac battery health, Android, and Chrome OS. - [Payslip Generator](https://techtester.online/payslip-generator/): Create a professional payslip or salary slip online in under 60 seconds. Add company logo, custom earnings, and deductions. Download clean PDF instantly. No signup, no watermarks, no data stored. Supports all currencies including PKR, SAR, AED, INR, GBP, USD, EUR, MXN, COP, ARS. ## Console-Specific Controller Tests - [PS5 DualSense Controller Test](https://techtester.online/ps5-controller/): Test every PS5 DualSense input buttons, adaptive triggers, thumbsticks. Diagnose drift with real time axis readings. Fix guides and Sony free warranty repair information included. - [Xbox Controller Checker](https://techtester.online/xbox-controller/): Test Xbox Series X/S and Xbox One controller inputs on PC. USB and Bluetooth connection guide. Drift and trigger calibration detection. - [Nintendo Switch Controller Test](https://techtester.online/nintendo-switch/): Test Nintendo Switch Pro Controller and Joy Con inputs. Stick drift detection. Nintendo free Joy Con repair programme information included. ## Blog Articles - [How to Test Your Keyboard Keys Online](https://techtester.online/how-to-test-keyboard-keys-online/): Complete guide to keyboard testing including dead keys, ghosting, and stuck key diagnosis. - [Keyboard Not Working? 8 Fixes](https://techtester.online/keyboard-not-working-fixes/): Diagnose and fix keyboard problems from driver issues to hardware faults on Windows and Mac. - [What is Keyboard Ghosting?](https://techtester.online/what-is-keyboard-ghosting-and-how-to-test-for-it/): Explains keyboard ghosting, N key rollover, anti ghosting, and how to test for it online free. - [How to Type Arabic on Windows and Mac](https://techtester.online/how-to-type-arabic-windows-mac/): Step by step guide for enabling Arabic keyboard input on Windows 10, 11, and macOS. - [How to Test Your Microphone Online](https://techtester.online/how-to-test-microphone-online/): Complete mic testing guide with dB levels, permission fix instructions, and Zoom/Discord troubleshooting. - [How to Connect Xbox Controller to PC](https://techtester.online/how-to-connect-xbox-controller-to-pc/): USB, Bluetooth, and Xbox Wireless Adapter connection methods with full troubleshooting. - [Xbox Controller Not Connecting to PC](https://techtester.online/xbox-controller-not-connecting-to-pc/): 8 fixes for Xbox controller not detected wrong cable, Bluetooth re pair, driver update, firmware. - [PS5 Controller Drift Test and Fix](https://techtester.online/ps5-controller-drift-test-fix/): How to test PS5 DualSense drift with axis readings and 4 fix methods including Sony warranty. - [How to Fix PS5 Controller Drift](https://techtester.online/how-to-fix-ps5-controller-drift/): 6 methods from isopropyl cleaning to Sony warranty claim and potentiometer replacement. - [What is Controller Drift?](https://techtester.online/what-is-controller-drift-how-to-fix/): Complete guide to controller drift causes, testing with axis values, and fixes for PS5, Xbox, and Nintendo Switch. - [What is Input Lag?](https://techtester.online/what-is-input-lag/): Input lag explained causes, how to test free online, and 7 ways to reduce gaming latency. - [How to Test Your RAM Online](https://techtester.online/how-to-test-your-ram/): Free RAM speed test guide browser test vs MemTest86, XMP fix, dual channel configuration. - [Check Laptop Battery Health Online](https://techtester.online/check-laptop-battery-health/): How to check battery health free browser checker, Windows powercfg report, Mac battery health guide. - [What is a Payslip?](https://techtester.online/what-is-a-payslip/): Complete guide to payslip components, legal requirements by country, and how to read yours. - [How to Create a Payslip Online Free](https://techtester.online/how-to-create-payslip-online-free/): Step by step guide using TechTester payslip generator with tips for professional results. - [Free Payslip Generator vs Zoho](https://techtester.online/free-payslip-generator-vs-zoho/): Full feature comparison including cost, privacy, time to first payslip, and who each tool suits. - [Best Free Online Tools to Test PC Hardware](https://techtester.online/best-free-online-tools-to-test-pc-hardware/): Roundup of browser based PC hardware testing tools no download, no install required. ## About & Legal - [About TechTester](https://techtester.online/about/): Brand story, tool list, privacy principles, and why TechTester was built. - [Privacy Policy](https://techtester.online/privacy-policy/): All data stays in the browser nothing stored server side. Full privacy policy. - [Contact Us](https://techtester.online/contact/): Contact form for questions, bug reports, tool suggestions, and business enquiries.