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Max 10 files • Max file size: 50MB
Accepted formats: .tiff, .tif
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Reducing massive file sizes without quality loss
TIFF compression reduces file size by applying compression algorithms to image data stored inside TIFF containers. Unlike JPG (always compressed) or PNG (always lossless compressed), many TIFF files are saved uncompressed by default, resulting in massive file sizes (100-500MB common for professional photography). This isn't a format limitation—it's a workflow choice. TIFF format supports multiple compression methods: LZW (lossless, 40-60% reduction), Deflate (lossless, similar to ZIP), JPEG (lossy, 80-95% reduction), and PackBits (simple lossless).
Photoshop, Lightroom, and professional scanners often default to uncompressed TIFF to avoid compatibility issues with legacy software. Modern TIFF compression (LZW, Deflate) is universally supported—no compatibility trade-off anymore. This tool applies lossless compression while preserving exact pixel data, metadata (EXIF/XMP/IPTC), color profiles (CMYK/RGB), and bit depth (8/16/32-bit). Result: dramatically smaller files without quality loss. Powered by libvips—the same professional-grade library used by Instagram and Shopify for production image processing.
Professional-grade compression, entirely in your browser
Drag and drop TIFF files onto the page, or click "Add TIFFs" to browse. Up to 10 files at once (50MB maximum per file). Accepts uncompressed TIFF, LZW-compressed, Deflate, JPEG-in-TIFF, multi-page TIFF, GeoTIFF, CMYK, 16-bit, and 32-bit color depth.
Five presets available. Lossless (Archive) uses Deflate with horizontal predictor for best lossless compression (40-60% reduction, zero quality loss). Lossless (Compatible) uses LZW for legacy software support. Photo Optimized applies JPEG-in-TIFF (quality 85, 70-85% reduction, lossy). Maximum uses JPEG quality 70 for smallest files. Target Size hits exact size limits for email attachments.
Processing takes 2-10 seconds per file depending on size. Download individually (with "_compressed" suffix) or grab everything as a ZIP. Powered by wasm-vips v0.0.16 (libvips compiled to WebAssembly)—same professional library used by major websites. 150MB uncompressed TIFF typically becomes 60-90MB with Deflate lossless compression.
Understanding lossless and lossy options
Algorithm: Lempel-Ziv-Welch, identifies repeating patterns in pixel data, replaces with shorter codes.
When to use: Maximum compatibility with legacy software (any TIFF reader from 1980s+), professional archives, older printers/scanners.
Algorithm: Also called ZIP or zlib compression. More efficient than LZW (10-20% better compression ratio). Modern standard.
When to use: Default choice for professional workflows, archival, master files. Requires software from 2000s+ (universally supported now). Faster compression, smaller files.
Algorithm: Embeds JPEG-compressed data inside TIFF container. Maintains TIFF structure (metadata, layers) but lossy pixel data.
When to use: Web previews, thumbnails, when file size critical and quality loss acceptable. Use only when lossless insufficient. Not recommended for professional workflows.
Understanding uncompressed TIFF size calculation
Size = Width Ă— Height Ă— Channels Ă— Bytes per Channel
• 5000 × 5000 pixels (high-res photo)
• RGB (3 channels)
• 16-bit color depth (2 bytes per channel)
Size = 5000 Ă— 5000 Ă— 3 Ă— 2 = 150 MB uncompressed
With LZW compression: 150MB → 60-75MB (40-60% reduction)
Photoshop, Lightroom, scanners default to no compression for maximum compatibility with legacy software.
16-bit (professional) vs 8-bit (consumer) = 2x file size. 32-bit HDR = 4x size.
Print workflows use CMYK (4 channels) vs RGB (3 channels) = 33% larger.
Scanned documents, faxes stored as multi-page TIFF—each page adds size.
100% browser-based via WebAssembly
100% browser-based processing via WebAssembly (wasm-vips library, browser-compiled libvips). TIFF files never leave your device—no upload to servers, no storage, no exposure. Unlike other tools that require server uploads, we process everything locally in your browser memory. Your files load into libvips WASM instance, compress using Deflate/LZW/JPEG codecs, output to browser—all without network transmission.
Wedding, portrait sessions stay confidential
Brand assets, campaigns never exposed
Radiology, pathology HIPAA compliance
Contracts, legal, historical secured
No POST endpoint exists in codebase. Files stay in browser memory. Sequential processing (one TIFF at a time) in libvips WASM instance. Works offline after page loads (WASM modules cached). GDPR compliant by design—no data collection possible. Professional-grade library (same as Instagram/Shopify) adapted for browser privacy.
Everything you need to know about TIFF compression
Yes. TIFF format supports multiple compression types: LZW (lossless, 35-55% reduction), Deflate/ZIP (lossless, 40-60% reduction), JPEG (lossy, 80-95% reduction), and PackBits (simple lossless). Many users don't know this because professional software (Photoshop, Lightroom, scanners) defaults to uncompressed TIFF. Compression must be explicitly enabled.
TIFF format supports both. LZW, PackBits, and Deflate compression are lossless (every pixel identical to original). JPEG compression inside TIFF is lossy (quality loss like regular JPEG). Uncompressed TIFF is also lossless but creates massive files. Professional workflows use lossless compression to preserve quality while reducing file size 40-60%.
Apply lossless compression (LZW or Deflate) to reduce file size 40-60% without quality loss. Use our tool: add your TIFF, select Lossless (Archive) preset, download compressed file. For even smaller files, use Photo Optimized preset (JPEG compression, lossy). Strip metadata for additional 5-15% reduction if copyright/camera info not needed.
Deflate (also called ZIP) is best for lossless compression—40-60% reduction, faster than LZW, modern standard. Use LZW only if you need legacy software compatibility (1980s+ support). JPEG compression achieves 80-95% reduction but is lossy (quality loss). For professional archives and master files, Deflate is optimal. This tool defaults to Deflate with horizontal predictor.
Lempel-Ziv-Welch, a lossless compression algorithm that identifies repeating patterns in pixel data and replaces them with shorter codes. Been in TIFF spec since 1987. Universal compatibility (any TIFF reader supports it). Typically achieves 35-55% reduction. Patent expired 2003 (was patented 1985-2003). Slightly less efficient than Deflate but works with older software.
Often saved uncompressed by default. Professional software (Photoshop, Lightroom, scanners) defaults to uncompressed for maximum compatibility. Additionally: 16-bit color depth (professional) = 2x file size vs 8-bit, CMYK color (print) = 33% larger vs RGB, multi-page TIFFs add size per page. Example: 5000Ă—5000 RGB 16-bit photo = 150MB uncompressed, becomes 60-90MB with Deflate compression.
Depends on compression type. LZW and Deflate are lossless—zero quality loss, every pixel identical to original. JPEG compression in TIFF is lossy (quality loss like regular JPEG). Our Lossless presets preserve exact quality. Photo Optimized and Maximum presets use JPEG compression (quality 85 and 70) with visible quality loss—use only for web previews, not professional work.
Yes. Use Lossless (Archive) or Lossless (Compatible) presets. Both use lossless compression (Deflate or LZW) with horizontal predictor. Achieves 40-60% reduction with zero quality loss—mathematically identical pixels. Preserves CMYK color, 16-bit depth, all metadata (EXIF, XMP, IPTC). Perfect for professional photography, print workflows, archival storage where quality is critical.
Yes, compress up to 10 TIFF files at once (50MB maximum per file). All processed locally in your browser—sequential processing (one at a time) for memory safety. Download individually or as a ZIP. Processing takes 2-10 seconds per file depending on size. Perfect for compressing entire photo shoots or document batches.
No. Most professional software (Photoshop, Lightroom, scanners) saves TIFF uncompressed by default to avoid compatibility issues with legacy systems. This creates massive files (100-500MB common). Modern TIFF compression (LZW, Deflate) is universally supported—no compatibility concerns. Compression must be explicitly enabled in software settings or applied with tools like this.
Reduce 100MB files to 30-40MB with lossless LZW or Deflate compression. Up to 10 files at once, preserves professional quality perfectly. Powered by libvips (used by Instagram/Shopify).
