YappyKit

Useful tools. No uploads.

Everyday file tools that run in your browser.

Compress images, remove photo metadata, compare spreadsheets and more. Your files are processed in your browser and are not uploaded.

Open a tool How it works
  • ✓ Processed on your device
  • ✓ No file uploads
  • ✓ No registration
  • ✓ Free

Why use YappyKit

Files stay on your device

Your files are processed in your browser. They are not uploaded to our servers.

No upload step

Large files are processed directly, with no upload or download. No queues, watermarks or size caps.

Works offline

Once a tool has loaded, it keeps working without a connection. The processing is local.

The tools

More tools are being added. Each one runs in your browser. Use the search box above to find one fast.

Compress an image to an exact size Get a photo under 100 KB. No quality slider to guess at. Remove metadata from a photo Strip GPS location, camera and author data before you share. Compare two spreadsheets See added, removed and changed rows at a glance. Compress a video to fit a limit Fit a video under WhatsApp, email or a size limit. Passport & visa photo studio Country presets, face alignment and printable sheets. Scan & clean a document (OCR) Sharpen a document photo and pull out its text. Mouse test, buttons, scroll & double-click Check every button, the scroll wheel and double-click speed. Keyboard test, check every key See which keys register, and find stuck or dead ones. Online ruler, calibrated to your screen A real ruler in cm and inches, once you calibrate it. Compress a PDF to an exact size Get a PDF under 100 KB, 200 KB or 500 KB for a form upload. Webcam and microphone test Check your camera and mic before a call, without recording anything. Random word generator Words for games, writing and strong passphrases, drawn in your browser.

How it works

Two things happen on a YappyKit page. Your file is processed by your browser and is not uploaded. The page loads like any website. You can check this yourself.

  1. 1

    Choose a file

    Drop in a photo, PDF or spreadsheet. It loads into this browser tab only.

  2. 2

    Your device does the work

    WebAssembly and your CPU/GPU do the processing. Nothing is sent to a server.

  3. 3

    Download the result

    Save the output. No account, no watermark, no waiting on an upload.

Check it yourself: open your browser's developer tools, go to the Network tab, and run any tool. No request carries your file.

Also from us: YappyDraw

An infinite-canvas drawing and diagramming app, free and open source. Sketch architecture diagrams, mindmaps, wireframes and slide decks in a hand-drawn or clean style. It runs in your browser too.

  • 100+ shapes, flowchart, UML, cloud, infrastructure and wireframe
  • Mindmaps with auto-layout and collapsible branches
  • Presentations with slide transitions and 35+ animation effects
  • Export to PNG, SVG, PDF, PPTX and video
Open YappyDraw (opens in a new tab)