WebP to TIFF Crop Converter

Load a WebP, drag the crop handles to define exactly the area you need, preview the result, then download a lossless uncompressed TIFF. Every pixel is preserved exactly. Transparency is retained. Everything runs in your browser — your image never leaves your device.

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Drop a WebP here

or Browse Files  ·  WebP supported

What This Tool Does

This tool loads a WebP image directly in your browser, presents an interactive crop overlay with draggable handles, and converts the selected area to a TIFF file. No server upload is required. The workflow runs entirely in client-side JavaScript using the HTML5 Canvas API. The cropped pixel data is read via ctx.getImageData() and written into a hand-constructed TIFF binary: a little-endian baseline TIFF with all required IFD tags (ImageWidth, ImageLength, BitsPerSample, Compression=1, PhotometricInterpretation, StripOffsets, SamplesPerPixel=4, RowsPerStrip, StripByteCounts, ExtraSamples for alpha, and SampleFormat). The result is a valid uncompressed 32-bit RGBA TIFF readable by Photoshop, GIMP, LibTIFF, and any TIFF-capable application.

Who This Is For

  • Photographers and retouchers who need a lossless TIFF crop from a WebP source for editing in Photoshop or Lightroom
  • Print designers who require an uncompressed TIFF for press-ready workflows in InDesign or QuarkXPress
  • Archivists converting WebP content to a long-term preservation format
  • Anyone who needs to trim and convert a WebP to TIFF without installing desktop software

WebP vs TIFF: Format Comparison

PropertyWebPTIFF
CompressionLossy or losslessUncompressed or lossless (LZW, ZIP)
File sizeSmall — optimised for webVery large — 4 bytes per RGBA pixel
Quality lossNone (lossless) or tunable (lossy)None — always lossless or uncompressed
Browser supportAll modern browsersNot natively in browsers
TransparencyFull alpha channelFull alpha channel (RGBA)
Professional tool supportLimited in older editorsUniversal — Photoshop, GIMP, InDesign, etc.
Best forWeb delivery, bandwidth savingsPrint, archiving, professional editing

Frequently Asked Questions

Why is the TIFF file so large?
TIFF in this tool is written as uncompressed 32-bit RGBA — 4 bytes for every pixel. A 2000 × 2000 crop produces a 16 MB file. This is by design: uncompressed TIFF is the standard interchange format for print and professional editing workflows, where compression could introduce compatibility issues with older software. If you need a smaller lossless file, use the WebP to PNG tool instead.
Will transparent areas in my WebP be preserved in the TIFF?
Yes. The tool writes a 32-bit RGBA TIFF with the ExtraSamples tag set to 2 (unassociated alpha), correctly signalling to applications that the fourth channel is a transparency mask. All pixel alpha values from the WebP source are preserved exactly.
Is there a quality slider for TIFF?
No — TIFF (uncompressed) is always lossless. Every pixel is stored at full fidelity. There is no quality trade-off. If you want a smaller file with adjustable quality, use the WebP to JPG tool instead.
How precise is the crop tool?
The crop operates at native pixel accuracy on the original WebP dimensions. The canvas is scaled to fit your screen for display, but crop coordinates are mapped back to the full-resolution image before the TIFF is generated.
Can I move the crop selection after setting it?
Yes — click and drag inside the crop rectangle (away from the handles) to reposition it anywhere within the image. Handles resize; the interior pans.
Is there a file size limit?
There is no server-imposed limit because no upload occurs. The practical limits are your browser's available RAM and the JavaScript heap. Because TIFF is uncompressed, the in-memory buffer for a large crop can be substantial. For crops larger than ~4000 × 4000 px on lower-memory devices, consider using the WebP to PNG tool for a more memory-efficient lossless output.