ASS to SRT Converter
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Supports .ass files up to any size
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From Styled Anime Subtitles to Plain Universal Text
ASS files are the backbone of anime fansubbing, carrying per-character styling, screen-positioned signs, karaoke timing, and visual effects through override tags like {\blur2}, {\pos(320,400)}, and {\fad(200,100)}. When you need those subtitles on a smart TV, in a video editor, or on a media server, all that styling becomes a liability. This converter reads the ASS [Events] section, removes every override block and style reference, converts centisecond timing to millisecond SRT timestamps, and outputs a plain subtitle file that plays everywhere.
Input Format
ASSASS (Advanced SubStation Alpha v4+) is an extended subtitle format used primarily in anime distribution. It features a [Script Info] header, a [V4+ Styles] section with extended fields (Outline, Shadow, Blur), and an [Events] section with Dialogue lines carrying inline override tags. Timing uses centisecond precision (H:MM:SS.cc). ASS supports alpha channel colors, vector drawing, and karaoke effects.
Output Format
SRTSRT (SubRip) is the most universally compatible subtitle format. Each entry has a sequential number, a comma-separated timestamp pair (00:01:30,500 --> 00:01:35,000), and plain text. SRT supports no styling, no positioning, and no override tags. It renders identically on every device from VLC to Samsung TVs to iPhone video apps.
Features
Why Convert?
Format Differences
Common Use Cases
Anime Subtitle Simplification
Convert complex ASS fansub files with karaoke and positioned signs to clean SRT for playback on devices that lack ASS rendering support.
Smart TV Compatibility
Samsung, LG, and Sony smart TVs do not render ASS override tags. Converting to SRT ensures subtitles display correctly without garbled formatting.
Video Editing Workflow
Import ASS subtitles into Premiere Pro, DaVinci Resolve, or Final Cut Pro as SRT, the universally accepted import format for NLE software.
Media Server Delivery
Plex, Jellyfin, and Kodi auto-detect SRT subtitles alongside video files. ASS files may require additional renderer configuration.
Mobile Video Playback
iOS and Android video players do not render ASS positioning and styling. SRT ensures reliable subtitle display on phones and tablets.
Related Formats
VTT
WebVTT is for web video. Convert ASS to VTT if you need browser-compatible subtitles for HTML5 video players.
SSA
SSA is the predecessor to ASS. If you have SSA files, this converter handles them identically since both share the same Dialogue structure.
TTML
TTML is required by Netflix and Apple TV. Convert ASS to TTML for streaming platform subtitle delivery.
Frequently Asked Questions
ASS (Advanced SubStation Alpha v4+) is an extended subtitle format introduced in 2003, widely used in anime fansubbing. It supports styled text with fonts, colors, outlines, shadows, blur effects, screen positioning, vector drawing, and karaoke timing. Files are organized into [Script Info], [V4+ Styles], and [Events] sections with inline override tags for per-character formatting.
ASS (v4+) is the successor to SSA (v4). ASS adds blur effects, outline and shadow style fields, extended alpha channel support, and additional override tags. Both share the same section-based structure and Dialogue format. This converter handles both ASS and SSA files identically.
Karaoke timing tags ({\k}, {\kf}, {\ko}) are removed entirely during conversion. SRT has no karaoke support. The dialogue text surrounding the karaoke tags is preserved, but the syllable-by-syllable timing data is lost.
Yes. SRT does not support any styling, positioning, or visual effects. Every override tag ({\fs}, {\c}, {\pos}, {\blur}, {\fad}, {\k}, etc.) is stripped during conversion. Only the dialogue text and timing are preserved. If you need to keep styling, do not convert to SRT.
ASS uses H:MM:SS.cc format where cc is centiseconds (0-99). SRT uses HH:MM:SS,mmm where mmm is milliseconds (0-999). The converter multiplies centiseconds by 10. For example, 0:01:25.40 in ASS becomes 00:01:25,400 in SRT. Hours are zero-padded to two digits.
Positioning tags ({\pos(x,y)}, {\move(x1,y1,x2,y2)}) control where subtitles appear on screen. SRT has no positioning support, so these tags are stripped. All subtitle text defaults to the bottom-center position in SRT.
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