WebP to HEVC Converter

How to Convert WebP to HEVC Online

1. Upload Your WebP Files: Drag and drop or click "+ Add Files" to load one or more WebP images. Both static WebP and animated WebP (the WebP equivalent of a GIF) are accepted. Batch is supported — drop in a folder of stills to assemble a single slideshow.
2. Pick Merge Strategy and Duration: Choose "Merge images" to stitch every WebP into one.hevc clip, or "Video per image" to output one short clip per file. Set Duration (the seconds-per-frame each still is held on screen — default 5 seconds; pick 1-10 seconds depending on pacing) and Background Color (used when input aspect ratios don't match the chosen resolution; default Black).
3. Set Quality Preset and Resolution (Optional): Quality Preset offers "Constant Quality" (fixed perceptual quality, variable bitrate) or "Constraint Quality" (caps the bitrate). The preset dropdown defaults to "Very High (Recommended)" — drop to High or Medium to shrink the file. Resolution can stay at "Keep original", lock to a Fixed Resolution (e.g. 1920×1080, 3840×2160), pick a Preset (720p / 1080p / 1440p / 2160p), or take custom width × height.
4. Convert and Download: Click Convert. The output is a .hevc raw HEVC Annex B elementary stream — see the FAQ below for what to do with it. Files process on our servers, no sign-up, no watermark.

Why Convert WebP to HEVC?

WebP is a still-image (or animation) format Google introduced in 2010, capped at 16,383 × 16,383 pixels per frame. HEVC (H.265) is a video codec ratified by ITU-T in June 2013 and adopted by Apple across iOS 11 / macOS High Sierra in September 2017. Converting WebP → HEVC means wrapping one or many WebP stills inside a video bitstream — usually for distribution, archival, or further editing where a video container is the right shape.

• Slideshows for the Apple ecosystem — HEVC is the native video codec for iPhone, iPad, Apple TV, and Final Cut Pro. Photo slideshows encoded as HEVC play with hardware decoding on every Apple device shipped since 2017.
• Smaller archival masters than a JPEG-sequence MP4 — HEVC delivers roughly 50% bitrate savings versus H.264 at matched quality (62% at 1080p, 64% at 4K in the BBC / Fraunhofer 2014 subjective study). A 300-image WebP slideshow archived as .hevc is dramatically smaller than the same slideshow re-encoded with x264.
• Feeding an HEVC editing or muxing pipeline — .hevc Annex B is the raw NAL-unit format ffmpeg and MP4Box consume directly. Editors and broadcasters who want to mux HEVC into MP4 / MOV / TS / MKV later prefer the elementary stream over a pre-wrapped container.
• Animated WebP → playable HEVC video — most native players and editors don't decode animated WebP. Converting to HEVC turns the animation into something Final Cut, Premiere, QuickTime, and the iOS Photos app all play natively.
• 4K / 8K image sequences — at high resolutions HEVC's coding gains matter most. WebP photos up to 16,383 px on a side fit inside HEVC's 8K-friendly profile cleanly.
• Title cards and bumpers for HEVC video projects — generating a 3-second.hevc clip from a single WebP card matches your project's codec exactly, avoiding a re-encode at the timeline level.

WebP vs HEVC — What You're Actually Changing

.hevc is the raw bitstream — it stores NAL units prefixed with the Annex B 0x00000001 start codes, with no container, no audio track, and no timing metadata. That's why most consumer players (QuickTime, Windows Media Player, VLC's default config) won't open it directly: they need an MP4/MOV/MKV wrapper.

Quality Preset and Resolution Quick Guide

For most slideshow exports, Constant Quality + Very High + 1080p produces a balanced result. If you plan to upload to YouTube or wrap into MP4 later, leave the resolution at the source size and let the downstream encoder handle scaling.

Frequently Asked Questions

Why does the output have a.hevc extension instead of.mp4?

Because what we produce is the raw HEVC elementary stream — the video codec data with no container around it. The .hevc extension signals an Annex B bitstream of HEVC NAL units, the format ffmpeg, MP4Box, and most HEVC analyzers consume directly. If you need a file that plays in QuickTime / Windows / browsers / the iOS Photos app out of the box, convert to a container instead — try WebP to MP4, WebP to MOV, or WebP to MKV.

How do I actually play or share my.hevc file?

Three common paths. (1) Mux it into a container with ffmpeg -i in.hevc -c:v copy out.mp4 — no re-encode, just a wrapper. (2) Import directly into Final Cut Pro, DaVinci Resolve, or a Premiere project that already handles HEVC. (3) If you wanted a playable file from the start, run WebP to MP4 instead and skip the muxing step.

Will animated WebP become a real moving video?

Yes. Animated WebP frames become individual video frames in the HEVC stream, preserving the animation order. Frame timing follows the Duration you set, not the WebP's original frame-delay metadata — set Duration to match the WebP's animation speed (often 1/10 second per frame for typical animated WebP) if you want the playback rhythm to match the source.

What's the difference between Constant Quality and Constraint Quality?

Constant Quality holds perceptual quality steady and lets the encoder spend more bits on complex frames (sharp text, fine textures) and fewer on flat ones — file size varies, quality stays predictable. Constraint Quality enforces a bitrate ceiling so you know the file size in advance, but quality drops on busy frames. Pick Constant Quality for archival; pick Constraint Quality when you need a hard size target (email, upload caps, fixed-storage devices).

Will the.hevc file play on my iPhone or Mac?

The HEVC codec inside is fully supported by every iPhone, iPad, and Mac from 2017 onward (iOS 11 / macOS High Sierra and later). The naked .hevc extension, though, isn't a format the Photos app or QuickTime opens — you'll need to mux it into an .mp4 or .mov first (see the player FAQ above). Apple's HEVC capture in modern iPhones writes .mov containers, not raw .hevc.

Can I set a frame rate or just per-image duration?

This tool exposes per-image Duration (seconds per still). Effective frame rate equals 1 / Duration — a 1-second Duration produces a 1 fps clip, a 1/24-second Duration approximates 24 fps. For variable per-image timing or true motion frame rates, build the slideshow in an NLE and export from there, or convert to a container with WebP to MP4 where standard fps presets (24 / 30 / 60) are exposed.

Does HEVC need a license fee for me to use the output?

Apple, Microsoft, and most browser/OS vendors have already paid the patent pools (MPEG LA, HEVC Advance, Velos Media, Technicolor) for end-user playback. Personal use, editorial use, and most commercial distribution of HEVC content are covered by the upstream licensing — the constraint typically only affects HEVC encoder developers and streaming platforms, not individuals making slideshows.

Is there a file size or count limit?

No hard cap from the converter — files process on our servers, so the constraint is upload size and connection speed and CPU. Practically, 200-300 WebP stills at 1080p convert smoothly on a modern laptop. For very large batches or 4K input, expect proportionally longer encode times. If you need to slim down the resulting HEVC further, run it through HEVC compressor after.

What if I want a single-image HEVC instead of a slideshow?

Drop in one WebP, leave Merge Strategy at "Merge images", and set Duration to whatever hold time you want (1-10 seconds is typical for a still card). The output is a short .hevc clip of that single image — useful as a title card, bumper, or for testing an HEVC playback pipeline. JPG to HEVC and PNG to HEVC cover the same flow for other source formats.