BoltPlayer
6-Scale Typography & Multi-Audio Engine

6 Subtitle Size Presets (S to XXXL), Vertical Placement & Audio Dubbing

Customize subtitle typography in real time with 6 font scales from Small (S) to Extra-Large (XXXL), shift captions up or down (-5 to +15), load OpenSubtitles, and switch multi-language audio dubbing tracks.

Subtitle Scales
S → XXXL
6 instant font size presets: S, M, L, XL, XXL, XXXL
Vertical Offset
-5 to +15
Move subtitles higher or lower with Up/Down arrow buttons
Subtitle Sources
Embedded + Web
Supports embedded MKV/MP4 tracks & online subtitle search
Audio Dubbing
Multi-Track
Switch language dubbing & Dolby Atmos / 5.1 EAC3 audio tracks
Select View (2 Captures):
Real-Time Subtitle Size (S–XXXL) & Vertical Position Popup
Real-Time Subtitle Size (S–XXXL) & Vertical Position Popup2400×1350
Interactive Subtitle Size Tester (S → XXXL)

Test All 6 Subtitle Font Scales Live

Active Preset: XL (24px) — Default 4K TV & sofa distance

“The citadel stands ready — synchronize all orbital relays before dawn.”

Plus vertical placement offset adjustment from -5 (lower) to +15 (higher) inside the Full Screen “TT” Subtitle menu.

Cinema Accessibility

Complete Typography & Audio Track Control for 4K Cinema

Whether you are watching on a desktop monitor or a 75-inch living-room TV from across the room, BoltPlayer lets you tailor subtitle size, height, and audio language in two clicks.

6 Font Size Presets (S, M, L, XL, XXL, XXXL)

Scale subtitle text from compact desktop captions (S) up to ultra-clear living-room sizes (XXXL).

Vertical Placement Offset (-5 to +15)

Raise or lower subtitles so they never overlap with hard-coded broadcast graphics or bottom letterbox bars.

Multi-Language Audio Dubbing

Click 'Dubbing' to switch between original audio and alternate language dubbing tracks embedded in the stream.

Complete Typography & Audio Track Control for 4K Cinema

All Captured Views for Subtitles (S–XXXL) & Dubbing

TT • Size & Position2400×1350
Real-Time Subtitle Size (S–XXXL) & Vertical Position Popup

Real-Time Subtitle Size (S–XXXL) & Vertical Position Popup

Click the 'TT' button on the Full Screen VOD bar to scale subtitles between S, M, L, XL, XXL, and XXXL or adjust their vertical placement above the seekbar.

6 Font Scales: S • M • L • XL • XXL • XXXL
Vertical Placement Slider & Up/Down Arrows
High-contrast drop-shadow caption box
Instant preview while video plays
Series • Subtitles & Dubbing2400×1350
Subtitles, Dubbing & Next Episode Controls in Series Playback

Subtitles, Dubbing & Next Episode Controls in Series Playback

Every VOD Movie and Series episode includes dedicated 'Subtitles', 'TT' (Size), and 'Dubbing' (Audio Track) buttons right on the bottom transport bar.

Dedicated 'Subtitles' language picker
Dedicated 'Dubbing' audio track selector
Remembers preferred size across episodes
Zero playback interruption when switching

Try Subtitles (S–XXXL) & Dubbing Free for 30 Days

Download BoltPlayer for Windows 10/11 or connect your playlist immediately via QR Code / MAC Address & Device Key.