TIFF to AV1 Converter

How to Convert TIFF to AV1 Online

1. Upload Your TIFF Files: Drag and drop or click "+ Add Files" to select one or many .tiff/.tif files. Multi-page TIFFs and image sequences are both supported, and batch upload lets you queue an entire frame folder at once.
2. Pick Merge Strategy and Image Duration: Choose Merge images to assemble all uploads into a single AV1 clip, or Video per image to render one short AV1 per file. Set Image Duration to control how long each frame is held — options range from 1/60 second (fast time-lapse playback at 60 fps equivalent) through 1/24 second (cinema-standard), up to 10 seconds (slideshow pacing). Pick Background Color (default Black) for any letterboxing when frame aspect ratios differ.
3. Set Quality and Resolution (Optional): Under File Compression, choose Constant Quality (CRF, fixed visual quality, variable file size) or Constraint Quality (bitrate-bounded). The Preset dropdown ranges from Lowest to Highest, with Very High as the recommended default. Under Video resolution, Keep original, pick a Fixed Resolution (720p, 1080p, 1440p, 2160p, 4320p), or use Preset Resolutions (1920x1080, 3840x2160, 5120x2880, 7680x4320, vertical 1080x1920, etc.).
4. Convert and Download: Click "Convert." The encode runs server-side in your session — no watermarks, no account required, files purged after processing. For the reverse direction see AV1 to TIFF; for a more broadly compatible output today, see TIFF to MP4.

Why Convert TIFF to AV1?

TIFF (Tagged Image File Format) is the dominant master format for scanned documents, scientific microscopy stacks, high-bit-depth photography, and frame-by-frame VFX renders — but a folder of 16-bit TIFFs can easily run hundreds of gigabytes. AV1, the royalty-free video codec finalized by the Alliance for Open Media in March 2018, compresses sequential frames roughly 40-50% smaller than H.264 and 10-20% smaller than HEVC at equivalent quality, while remaining free of licensing fees that encumber H.265. The combination is ideal for archiving image sequences, sharing time-lapses, and publishing scientific data with no codec royalties attached.

• Time-lapse and stop-motion — Cameras like the Sony A7R V or scientific microscopes (Leica DMi8, Nikon Ti2) export numbered TIFF frames per capture. Mux them into AV1 at 24 or 30 fps and a multi-gigabyte folder becomes a single playable clip a fraction of the size.
• Scientific data archival — Confocal microscopy and EBImage workflows produce TIFF stacks in the hundreds of gigabytes. AV1 at a high CRF setting yields visually near-lossless previews suitable for archival and sharing while preserving the originals for analysis. Keep the source TIFFs for intensity measurement; use AV1 for distribution.
• Royalty-free distribution — Unlike H.264 and HEVC, AV1 carries no per-stream license fees. For broadcasters, scientific publishers, and open-data archives, this removes a recurring legal/financial line item.
• Web delivery at smaller bitrates — YouTube, Netflix, Vimeo, and Twitch already ship AV1 for compatible clients. Encoding TIFF source frames directly to AV1 skips an intermediate H.264 generation and preserves quality at lower bitrates.
• High dynamic range and 10-bit content — TIFF natively stores 16-bit-per-channel data. AV1's Main 10 profile carries 10-bit color, making it a better archival fit than 8-bit H.264 for HDR/wide-gamut sequences.
• VFX dailies and render outputs — Render pipelines (Blender, Houdini, Nuke) output numbered TIFFs per frame. Wrap them into AV1 for review-friendly playback without the file-size penalty of ProRes or DNxHR proxies.

TIFF vs AV1 — Format Comparison

Quality Preset Quick Guide for AV1

Constant Quality (CRF) is recommended for archival because it adapts bitrate to content complexity. Use Constraint Quality only when you have a hard bitrate or file-size budget (streaming ladder rungs, embedded display).

Frequently Asked Questions

Why convert a still TIFF to a video codec like AV1?

The common case is an image sequence — a folder of numbered TIFFs from a camera, microscope, or render pipeline — that you want to play as a continuous clip. AV1 turns hundreds of frames into a single, small, playable file. For one-off still images, a still-image format like AVIF is usually a better fit.

What frame rate will my AV1 clip play at?

That depends on the Image Duration you pick. 1/30 second means each TIFF is held for 1/30 s, producing 30 fps playback. 1/24 second gives cinema-standard 24 fps. 1/60 second is 60 fps. Longer durations (1, 2, 5, 10 seconds) hold each frame for a slideshow-style pace. Match the duration to how your source frames were captured to keep timing accurate.

Will AV1 preserve the 16-bit depth of my TIFF?

AV1 supports 10-bit and 12-bit color via its Main 10 / Professional profiles, but not full 16-bit per channel. If your TIFFs contain HDR or scientific data with values beyond 10-bit precision (intensity measurements, raw sensor data), keep the original TIFFs as your analysis source — AV1 is for visualization, preview, and distribution copies.

How does AV1 file size compare to H.264 or H.265 from the same TIFF source?

AV1 typically produces files 40-50% smaller than H.264 and 10-20% smaller than HEVC at the same visual quality. The trade-off is encode time — AV1 encoding is computationally heavier. For a 1000-frame 1080p TIFF sequence, expect AV1 to take several times longer to encode than H.264, but the resulting file is markedly smaller.

Which browsers and devices can play my AV1 output?

Chrome 70+, Firefox 67+, and Edge 121+ play AV1 natively. Safari added partial support in 17.0 (better on Apple silicon Macs with hardware decode). On mobile, recent Android devices with Snapdragon 8 Gen 1+, Pixel 6+, or Samsung Galaxy S22+ have hardware AV1 decode; iPhone 15 Pro / 15 Pro Max and newer added hardware AV1 decode via the A17 Pro / A18 chips. Older devices fall back to software decode, which works but uses more battery. For maximum compatibility today, TIFF to MP4 (H.264) plays on essentially everything.

Can I make a time-lapse from numbered TIFFs (frame_0001.tif, frame_0002.tif…) in one click?

Yes. Upload the whole numbered sequence and choose Merge images for the Merge Strategy. Set Image Duration to 1/24 second (24 fps), 1/30 second (30 fps), or 1/60 second (60 fps) depending on your capture cadence. The encoder stitches the frames in filename order into a single AV1 stream.

My TIFFs have different aspect ratios — what happens during merge?

If you merge mixed-aspect TIFFs into one clip, the encoder pads each frame to the chosen output resolution using the Background Color you set (default Black). Pick a fixed output resolution (e.g., 1920x1080) and a background that complements your content. To avoid letterboxing entirely, pre-crop or resize the source TIFFs to a uniform aspect before upload.

Is AV1 really royalty-free, and why does that matter for TIFF archives?

Yes — AV1 was designed by the Alliance for Open Media (Google, Netflix, Mozilla, Apple, Amazon, Microsoft, and others) specifically to be royalty-free for both encoders and decoders. For archives that may be redistributed indefinitely (open scientific datasets, library digitization projects, public broadcast archives), this eliminates the per-stream MPEG LA / Via LA / Access Advance licensing fees that apply to H.264 and HEVC.

Should I pick Constant Quality (CRF) or Constraint Quality?

Use Constant Quality (CRF) when you care about visual quality and don't have a fixed file-size budget — the encoder spends more bits on complex frames and fewer on static ones, which is ideal for archival. Use Constraint Quality when you need a predictable bitrate or file size (e.g., fitting an adaptive streaming ladder, or a fixed-size delivery cap). For the reverse conversion AV1 to TIFF, every frame becomes a still image regardless of the original encoding mode.