ST Player: HD & 4K Video

Best 4K Video Player & HD Video Player: All Format Playback, Free Video Downloader, MP3 Converter, Private Vault & Online Browser.

ST Player is the best video player and 4K video player for Android. Play all video formats in HD, Full HD, 4K, and 8K with ultra-smooth performance. Download videos from any site, convert to MP3, stream online with built-in browser, and hide private files in a secure vault — the ultimate all-in-one HD video player.

🎥 Best 4K Video Player – All Format HD & 8K Playback

Top-rated HD video player and 4K video player with full support:

• All format video player: MP4, MKV, AVI, MOV, FLV, WMV, WEBM, 3GP, TS, M4V

• 8K video player & 4K video player with HDR & Dolby Vision

• Full HD video player with HW acceleration & smooth decoding

• Subtitle support: SRT, ASS, SSA, VTT – customizable fonts & sync

• Floating popup player, background playback, PiP mode

• Gesture controls: swipe for volume, brightness, seek

• Chromecast video player – cast to TV or Android TV

• Online video player with built-in browser streaming

• Playback speed, sleep timer, loop, bookmark & auto-rotation

⚡ Free Video Downloader – HD, 4K & MP3 Converter

Fastest free video downloader for Android:

• Download videos from all websites in HD, 4K, 8K

• Video to MP3 converter – extract audio in seconds

• MP4 to MP3, audio extractor, music downloader

• Background download, resume, multi-thread speed

• Save full playlists, albums, or single clips

🌐 Built-in Browser – Stream & Download Online Videos

• Online video player with private browser mode

• Stream videos directly in 4K video player

• Auto-detect & download from any link

• Ad-blocker & incognito streaming

🔐 Private Vault – Hide Videos & Photos Securely

Best video locker and private video player:

• Hide videos, hide photos in password-protected vault

• Secure media folder – files stay hidden after uninstall

• Fingerprint & PIN lock support

• Discreet icon & fake PIN option

🎵 Powerful MP3 Player & Music Player

All-in-one MP3 player with pro audio:

• Play all audio formats: MP3, FLAC, WAV, AAC, M4A

• Music equalizer with bass boost, reverb & 10-band presets

• Offline playback, playlist manager, tag editor

• Background music player & lock screen controls

✂️ Video Cutter, Trimmer & Editor

• Trim MP4, cut, merge, rotate videos

• Extract audio, compress, or convert formats

• Fast share to WhatsApp, Instagram, TikTok

🛠️ Smart File Manager & Storage Cleaner

• Storage cleaner, junk remover, duplicate finder

• Organize videos, music, downloads

• Memory booster & large file scanner

📺 Cast to TV & Multitasking Player

• Chromecast support – wireless HD streaming

• Popup video player & background mode

• Multi-window & split-screen playback

🌙 Advanced 4K Video Player Features

• Auto frame rate matching (24/30/60fps)

• Skip silence, loop section, A-B repeat

• Night mode, dark theme, blue light filter

• HW/SW decoder switch

• Screenshot capture, headphone auto-pause

• Default audio/subtitle track selection

✨ Why ST Player is the #1 Best Video Player?

• Lightweight 4K video player – under 10MB

• All-in-one: video player, downloader, MP3 converter, vault, browser

• Stylish themes, gesture UI, fast performance

• 100% free with optional pro upgrade

🔥 Download ST Player – The Best 4K Video Player, HD Video Player & Free Video Downloader!