EncCompareStop Guessing Which Encode Is Better.Compare video encodes side-by-side with perfectly synchronized playback, instant zooming, and frame-accurate inspection.Whether you're tuning AV1, HEVC, H.264, or testing FFmpeg settings, EncCompare makes quality comparisons fast and objective.One-time purchase. No subscription.Finally Compare Encodes ProperlyIf you've ever tried comparing encodes in VLC or MPC-HC, you've probably experienced:❌ Losing sync between videos❌ Forgetting which frame looked better❌ Jumping back and forth trying to find differences❌ Comparing still images instead of motionEncCompare was built specifically to solve these problems.Designed for Video EnthusiastsPerfect for: AV1 tuning FFmpeg experimentation SVT-AV1 optimisation x264/x265 comparisons Codec evaluation YouTube creators Video restoration Compression testing Key FeaturesPerfectly synchronized playbackEvery video stays locked together while playing, pausing and seeking.Instant A/B comparisonSwitch between encodes instantly without losing your place.Side-by-side viewingCompare multiple encodes simultaneously.No more opening several media players.Zoom into the detailsInspect compression artifacts, ringing, blocking, colour shifts and fine texture at high magnification.Frame-accurate navigationMove frame by frame to inspect exactly where encoders differ.Save Hours of ComparisonInstead of:• Opening four media players• Trying to synchronise playback• Losing your place every time you pause• Taking screenshots to compareEncCompare lets you load every encode into one workspace and compare them instantly.Free featuresLive 2×2 comparison grid — source + 3 encodes, no pre-encodingSynchronized scrub, zoom & panEvery codec: NVENC, AV1/SVT-AV1, x264/x265, and custom ffmpeg argsLive PSNR & SSIM vs the sourceComparison sidebar, timeline cache markers & cross-session cachePro upgrades⚡ A/B overlay — blink, wipe, and fade any two encodes against each other, or drop in an external file to compare📈 Rate-distortion sweep — run a codec across a full CRF or bitrate range and plot quality-vs-bitrate curves🎯 VMAF scoring — industry-standard perceptual scores on top of PSNR/SSIM💾 Export — burn the 2×2 comparison to PNG, or dump every metric to CSV for your reportOne licence, activated with a key and yours to move between machines, with a 14-day offline grace window so it keeps working on the road.Free to compare — go Pro to sweep, score, and share.Typical Workflow Open a source file in EncCompare. Setup several encodings of your video. Play them simultaneously. Zoom into areas of interest. Decide which encode actually looks best. Compare previously rendered encodings of your video or the trial encodings using the A/B browser Instead of spending an hour switching windows, you'll often reach a conclusion in minutes.Built Because I Needed ItAfter spending countless hours comparing FFmpeg outputs, I couldn't find software designed specifically for encoder evaluation.So I built EncCompare.It's the tool I wished existed.Future UpdatesDevelopment is ongoing.Planned improvements include: additional comparison layouts workflow improvements usability enhancements new analysis tools Frequently Asked QuestionsDoes it work with AV1?Yes.Can I compare different codecs?Yes. Any supported video files can be compared. At the moment, I'm limiting it to x264/x265, hevc, and AV1, but I might expand it to others upon requestIs it a subscription?No. One-time purchase.Who is it for?Anyone evaluating video quality, including creators, archivists and codec enthusiasts. Windows systems only.Buy EncCompare TodayStop guessing.See the difference.