Private, local-first browser tools

LocalKit - Private Local Image, PDF, Audio, and AI Tools

Use free LocalKit to resize images, compress files, edit PDFs, transcribe audio, and run AI utilities locally in your browser without uploading core files.

Open a practical image, document, media, text, or developer utility and process your work in the browser.

  • Resize Image

    Resize images locally with aspect ratio and output format controls.

  • Merge PDFs

    Combine multiple PDF files into one downloadable PDF.

  • Trim Audio

    Cut an audio file to the section you need and export it locally.

  • Compress Video

    Downscale and re-encode browser-playable videos locally as smaller WebM files.

50 browser tools available

Browse the complete LocalKit catalog by category. Every entry links to a dedicated workspace with its purpose and local-processing details.

Image tools

Document tools

  • Compress PDF

    Optimize PDF structure or flatten scan-heavy pages locally for smaller files.

  • Delete PDF Pages

    Remove selected pages from a PDF and save the remaining pages locally.

  • Merge PDFs

    Combine multiple PDF files into one downloadable PDF.

  • Sign PDF

    Place a typed signature or PNG/JPEG signature image onto selected PDF pages locally.

  • Split PDF

    Split one PDF into separate page or range files.

  • PDF to Images

    Turn selected PDF pages into PNG or JPEG image files.

Audio tools

  • Audio to SRT

    Generate local SRT subtitle files from speech audio with Whisper-family models.

  • Audio to Text

    Transcribe speech from local audio or video into downloadable plain text.

  • Trim Audio

    Cut an audio file to the section you need and export it locally.

Video tools

  • Compress Video

    Downscale and re-encode browser-playable videos locally as smaller WebM files.

  • Mute Video

    Remove the audio track from a browser-playable video and export a silent WebM.

  • Video to GIF

    Convert a short video segment into an animated GIF locally.

  • Trim Video

    Cut a video to the section you need and export it locally.

Text tools

Developer tools

View all 50 tools