FAQ
Direct answers before you press play.
Legal, security, compatibility and usage questions drawn from official product pages, package listings and common support searches. One answer open at a time.
Quick answer
KMPlayer is a free proprietary Windows media player. The current listed build is 4.2.3.36 (54.99 MB EXE). It plays MKV, MP4, HEVC and many more formats, works on Windows 10 and Windows 11 (64X), and should be verified with the published SHA-256 before install.
Is KMPlayer free to use?
Yes. Official PC pages present KMPlayer as a free download. The classic Windows product page lists content and advertisements. KMPlayer 64X is marketed as free with no advertisements.
Is KMPlayer safe?
KMPlayer is a long-standing media player under Pandora TV package listings, not a random unknown EXE brand. Safety still depends on the exact file you run. Compare SHA-256, read the digital signature if present, and decline optional bundles.
Is KMPlayer open source?
No. Public package metadata lists a proprietary license and Pandora TV copyright. Do not expect a public source tree for the Windows player.
Does KMPlayer work on Windows 11?
Yes for the 64X line: official 64X requirements explicitly mention Windows 11 support. Recommended OS across PC pages is Windows 10 with DirectX 9 or higher and about 150 MB of install space.
What is the difference between KMPlayer and KMPlayer 64X?
Classic KMPlayer covers 32-bit and 64-bit Windows and lists ads. 64X targets 64-bit PCs, markets 8K / 60 FPS / Blu-ray-DVD playback, and is advertised with no ads, no spyware and no user tracking.
Which formats can KMPlayer play?
Official lists include AVI, MKV, MP4, MOV, FLV, WMV, TS, WEBM, OGM, 3GP and many more for video; MP3, FLAC, AAC, ALAC, Opus, WAV and others for audio; SRT, ASS, SSA, SMI, SUB, IDX, SUP and more for subtitles.
Can it play 4K and 8K video?
4K / Ultra HD is listed on the standard PC pages. 8K, UHD and 60 FPS are listed on KMPlayer 64X pages, with hardware acceleration recommended for demanding files.
Why does my antivirus flag KMPlayer?
Heuristic scanners often flag packed media-player installers or optional offer screens. Verify the 54.99 MB size and published SHA-256 for 4.2.3.36 before installing. A hash mismatch is a hard stop. See the antivirus guide.
Does KMPlayer include malware?
Publisher 64X copy states no spyware. That is a vendor claim, not a substitute for your own hash check. This independent site does not claim the binaries are audited line by line.
Can I play Blu-ray or DVD folders?
64X marketing lists DVD and Blu-ray content playback. Some third-party reviewers still report limits with certain BDMV or ISO layouts, so test your disc structure after install.
How do I check I downloaded the real 4.2.3.36 package?
Confirm the release date Jun 26, 2026, the EXE size near 54.99 MB, and the SHA-256 value a61258365410efba9edd1cb1d21b605be6e5966c6a1528eab52191130e6e2b62. Full steps are on the download integrity section.
Is kmplayer.app the official publisher site?
No. kmplayer.app is an independent information and download landing site. It is not affiliated with Pandora TV, KMP Media, or kmplayer.appm. Read trust and security for the full disclaimer.
Can I download YouTube videos with KMPlayer?
Official marketing mentions URL streaming and downloading from online sources including YouTube-style links. Only use that for content you have the legal right to save. Site policy is in legal usage.
What changed in the latest 4.2.3.36 build?
Public 4.2 notes list sound renderer selection by monitors, MP3 thumbnail extraction, and inspection checks when loading files. See the changelog timeline.
Still stuck on playback? Start with the troubleshooting guides.