KIOHWKIO HARDWARE TEST
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    Tools
      Hardware tests39
      Input devicesKeyboard testMouse testGamepad testStylus and pen testPS5, PS4 and Switch controller testDouble click testScroll wheel test
      DisplayMonitor testRefresh rate testStuck pixel fixerColor blindness testScreen size and PPI calculatorMonitor calibration test
      Audio and cameraSpeaker testMicrophone testWebcam testHearing test3D audio testAudio latency testDecibel meterFocus sounds
      MobileTouch screen testSensor testVibration testGPS testNFC test
      NetworkMy IP addressPing and jitter testDNS speed testWebRTC leak testIPv6 test
      Speed and reflexesCPS testReaction time testTyping speed test
      SystemSystem infoCPU and GPU benchmarkStorage speed testUSB device info
      MusicMIDI keyboard test
      PDF tools41
      Organize PDFMerge PDFSplit PDFRemove pagesExtract pagesOrganize PDFScan to PDFAdd pages to PDFMultiple pages per sheet
      Optimize PDFCompress PDFRepair PDFOCR PDFPDF to PDF/A
      Convert to PDFJPG to PDFOffice to PDF
      Convert from PDFPDF to JPGPDF to WordPDF to PowerPointPDF to MarkdownPDF to ExcelExtract images from PDFPDF to textPDF to CSVPDF to HTML
      Edit PDFRotate PDFAdd page numbersAdd watermarkCrop PDFFill PDF formsEdit PDFEdit PDF metadataChange PDF page sizePDF bookmarksBates numberingAdd QR code to PDFCreate fillable PDFAttach files to PDF
      PDF securityUnlock PDFProtect PDFSign PDFRedact PDFCompare PDF
      AI PDF toolsSummarize PDF (AI)Coming soonTranslate PDF (AI)Coming soonChat with PDF (AI)Coming soon
      Media tools25
      ImagesHEIC to JPGCompress imageResize imageImage converterEXIF viewer and removerRemove backgroundQR code generatorQR code scannerCrop and rotate imageWatermark imagesImage to text (OCR)
      Audio and videoVideo to MP3Compress videoTrim videoScreen recorderWebcam recorderVoice recorderVideo to GIFVideo converterRotate and crop videoMerge videosAudio cutterAudio converterNormalize audio
      FilesFile hash checker

      Chat with PDF (AI)

      Coming soon

      Upload a PDF and ask anything about it. Answers are based only on the document and point to the pages they come from.

      Coming soon

      This tool is being prepared and will be available soon. Meanwhile, you can try these tools:

      Merge PDFCombine several PDFs into one fileSplit PDFSplit a PDF by ranges or into single pagesRemove pagesDelete pages from a PDFExtract pagesSave selected pages as a new PDFOrganize PDFReorder, rotate, delete and add pagesScan to PDFUse your camera to scan documents into a PDF

      How to use

      1. Choose or drop a PDF with text (for scanned files, run OCR first).
      2. Type a question or tap one of the suggestions.
      3. Ask follow-up questions; the conversation keeps its context.

      Frequently asked questions

      Does the AI use information from outside the PDF?

      It is told to answer only from the document and to say so when the answer is not in it.

      Is my conversation saved?

      No. The conversation exists only in this page and is gone when you close it.

      Which AI is used?

      Anthropic's Claude model. Only the document text and your questions are sent.