Format conversion

Move subtitles between SRT, WebVTT, ASS, SSA, SBV, SMI, LRC, MicroDVD, TTML, JSON, plain text and CSV — and see what each conversion drops before it runs.

144 tools

SubRip (SRT)

SRT Subtitle Format

What SRT can store, what it cannot, and every format you can convert it to or from.

Convert SRT to ASS in your browser — dropped: precision.

Convert SRT to CSV in your browser — nothing is lost in this direction.

Convert SRT to JSON in your browser — nothing is lost in this direction.

Convert SRT to LRC in your browser — dropped: timing, precision.

SRT to MICRODVD

Convert SRT to MICRODVD in your browser — dropped: frame rate.

Convert SRT to SBV in your browser — nothing is lost in this direction.

Convert SRT to SMI in your browser — nothing is lost in this direction.

Convert SRT to SSA in your browser — dropped: precision.

Convert SRT to TTML in your browser — nothing is lost in this direction.

Convert SRT to TXT in your browser — dropped: timing, line breaks.

Convert SRT to VTT in your browser — nothing is lost in this direction.

WebVTT (VTT)

VTT Subtitle Format

What VTT can store, what it cannot, and every format you can convert it to or from.

Convert VTT to ASS in your browser — dropped: precision, format-specific content.

Convert VTT to CSV in your browser — dropped: styling, format-specific content.

Convert VTT to JSON in your browser — dropped: format-specific content.

Convert VTT to LRC in your browser — dropped: timing, styling, precision, format-specific content.

VTT to MICRODVD

Convert VTT to MICRODVD in your browser — dropped: styling, frame rate, format-specific content.

Convert VTT to SBV in your browser — dropped: styling, format-specific content.

Convert VTT to SMI in your browser — dropped: format-specific content.

Convert VTT to SRT in your browser — dropped: styling, format-specific content.

Convert VTT to SSA in your browser — dropped: precision, format-specific content.

Convert VTT to TTML in your browser — dropped: format-specific content.

Convert VTT to TXT in your browser — dropped: timing, styling, line breaks, format-specific content.

Advanced SubStation Alpha (ASS)

ASS Subtitle Format

What ASS can store, what it cannot, and every format you can convert it to or from.

Convert ASS to CSV in your browser — dropped: styling, positioning, karaoke, format-specific content.

Convert ASS to JSON in your browser — dropped: format-specific content.

Convert ASS to LRC in your browser — dropped: timing, styling, positioning, karaoke, format-specific content.

ASS to MICRODVD

Convert ASS to MICRODVD in your browser — dropped: styling, positioning, karaoke, frame rate, format-specific content.

Convert ASS to SBV in your browser — dropped: styling, positioning, karaoke, format-specific content.

Convert ASS to SMI in your browser — dropped: styling, karaoke, format-specific content.

Convert ASS to SRT in your browser — dropped: styling, positioning, karaoke, format-specific content.

Convert ASS to SSA in your browser — nothing is lost in this direction.

Convert ASS to TTML in your browser — dropped: karaoke, format-specific content.

Convert ASS to TXT in your browser — dropped: timing, styling, positioning, karaoke, line breaks, format-specific content.

Convert ASS to VTT in your browser — dropped: styling, positioning, karaoke, format-specific content.

SubStation Alpha (SSA)

SSA Subtitle Format

What SSA can store, what it cannot, and every format you can convert it to or from.

Convert SSA to ASS in your browser — nothing is lost in this direction.

Convert SSA to CSV in your browser — dropped: styling, positioning, karaoke, format-specific content.

Convert SSA to JSON in your browser — dropped: format-specific content.

Convert SSA to LRC in your browser — dropped: timing, styling, positioning, karaoke, format-specific content.

SSA to MICRODVD

Convert SSA to MICRODVD in your browser — dropped: styling, positioning, karaoke, frame rate, format-specific content.

Convert SSA to SBV in your browser — dropped: styling, positioning, karaoke, format-specific content.

Convert SSA to SMI in your browser — dropped: styling, karaoke, format-specific content.

Convert SSA to SRT in your browser — dropped: styling, positioning, karaoke, format-specific content.

Convert SSA to TTML in your browser — dropped: karaoke, format-specific content.

Convert SSA to TXT in your browser — dropped: timing, styling, positioning, karaoke, line breaks, format-specific content.

Convert SSA to VTT in your browser — dropped: styling, positioning, karaoke, format-specific content.

YouTube SBV

SBV Subtitle Format

What SBV can store, what it cannot, and every format you can convert it to or from.

Convert SBV to ASS in your browser — dropped: precision.

Convert SBV to CSV in your browser — nothing is lost in this direction.

Convert SBV to JSON in your browser — nothing is lost in this direction.

Convert SBV to LRC in your browser — dropped: timing, precision.

SBV to MICRODVD

Convert SBV to MICRODVD in your browser — dropped: frame rate.

Convert SBV to SMI in your browser — nothing is lost in this direction.

Convert SBV to SRT in your browser — nothing is lost in this direction.

Convert SBV to SSA in your browser — dropped: precision.

Convert SBV to TTML in your browser — nothing is lost in this direction.

Convert SBV to TXT in your browser — dropped: timing, line breaks.

Convert SBV to VTT in your browser — nothing is lost in this direction.

SAMI (SMI)

SMI Subtitle Format

What SMI can store, what it cannot, and every format you can convert it to or from.

Convert SMI to ASS in your browser — dropped: precision, format-specific content.

Convert SMI to CSV in your browser — dropped: styling, positioning, format-specific content.

Convert SMI to JSON in your browser — dropped: format-specific content.

Convert SMI to LRC in your browser — dropped: timing, styling, positioning, precision, format-specific content.

SMI to MICRODVD

Convert SMI to MICRODVD in your browser — dropped: styling, positioning, frame rate, format-specific content.

Convert SMI to SBV in your browser — dropped: styling, positioning, format-specific content.

Convert SMI to SRT in your browser — dropped: styling, positioning, format-specific content.

Convert SMI to SSA in your browser — dropped: precision, format-specific content.

Convert SMI to TTML in your browser — dropped: format-specific content.

Convert SMI to TXT in your browser — dropped: timing, styling, positioning, line breaks, format-specific content.

Convert SMI to VTT in your browser — dropped: positioning, format-specific content.

Lyrics (LRC)

LRC Subtitle Format

What LRC can store, what it cannot, and every format you can convert it to or from.

Convert LRC to ASS in your browser — dropped: timing.

Convert LRC to CSV in your browser — dropped: timing.

Convert LRC to JSON in your browser — dropped: timing.

LRC to MICRODVD

Convert LRC to MICRODVD in your browser — dropped: timing, frame rate.

Convert LRC to SBV in your browser — dropped: timing.

Convert LRC to SMI in your browser — dropped: timing.

Convert LRC to SRT in your browser — dropped: timing.

Convert LRC to SSA in your browser — dropped: timing.

Convert LRC to TTML in your browser — dropped: timing.

Convert LRC to TXT in your browser — dropped: timing, line breaks.

Convert LRC to VTT in your browser — dropped: timing.

MicroDVD (SUB)

MICRODVD Subtitle Format

What MICRODVD can store, what it cannot, and every format you can convert it to or from.

MICRODVD to ASS

Convert MICRODVD to ASS in your browser — dropped: frame rate, precision.

MICRODVD to CSV

Convert MICRODVD to CSV in your browser — dropped: frame rate.

MICRODVD to JSON

Convert MICRODVD to JSON in your browser — dropped: frame rate.

MICRODVD to LRC

Convert MICRODVD to LRC in your browser — dropped: timing, frame rate, precision.

MICRODVD to SBV

Convert MICRODVD to SBV in your browser — dropped: frame rate.

MICRODVD to SMI

Convert MICRODVD to SMI in your browser — dropped: frame rate.

MICRODVD to SRT

Convert MICRODVD to SRT in your browser — dropped: frame rate.

MICRODVD to SSA

Convert MICRODVD to SSA in your browser — dropped: frame rate, precision.

MICRODVD to TTML

Convert MICRODVD to TTML in your browser — dropped: frame rate.

MICRODVD to TXT

Convert MICRODVD to TXT in your browser — dropped: timing, line breaks, frame rate.

MICRODVD to VTT

Convert MICRODVD to VTT in your browser — dropped: frame rate.

TTML / DFXP

TTML Subtitle Format

What TTML can store, what it cannot, and every format you can convert it to or from.

Convert TTML to ASS in your browser — dropped: precision, format-specific content.

Convert TTML to CSV in your browser — dropped: styling, positioning, format-specific content.

Convert TTML to JSON in your browser — dropped: format-specific content.

Convert TTML to LRC in your browser — dropped: timing, styling, positioning, precision, format-specific content.

TTML to MICRODVD

Convert TTML to MICRODVD in your browser — dropped: styling, positioning, frame rate, format-specific content.

Convert TTML to SBV in your browser — dropped: styling, positioning, format-specific content.

Convert TTML to SMI in your browser — dropped: styling, format-specific content.

Convert TTML to SRT in your browser — dropped: styling, positioning, format-specific content.

Convert TTML to SSA in your browser — dropped: precision, format-specific content.

Convert TTML to TXT in your browser — dropped: timing, styling, positioning, line breaks, format-specific content.

Convert TTML to VTT in your browser — dropped: styling, positioning, format-specific content.

JSON

JSON Subtitle Format

What JSON can store, what it cannot, and every format you can convert it to or from.

Convert JSON to ASS in your browser — dropped: precision.

Convert JSON to CSV in your browser — dropped: styling, positioning, karaoke.

Convert JSON to LRC in your browser — dropped: timing, styling, positioning, karaoke, precision.

JSON to MICRODVD

Convert JSON to MICRODVD in your browser — dropped: styling, positioning, karaoke, frame rate.

Convert JSON to SBV in your browser — dropped: styling, positioning, karaoke.

Convert JSON to SMI in your browser — dropped: styling, karaoke.

Convert JSON to SRT in your browser — dropped: styling, positioning, karaoke.

Convert JSON to SSA in your browser — dropped: precision.

Convert JSON to TTML in your browser — dropped: karaoke.

Convert JSON to TXT in your browser — dropped: timing, styling, positioning, karaoke, line breaks.

Convert JSON to VTT in your browser — dropped: styling, positioning, karaoke.

Plain text transcript

TXT Subtitle Format

What TXT can store, what it cannot, and every format you can convert it to or from.

Convert TXT to ASS in your browser — dropped: timing, precision.

Convert TXT to CSV in your browser — dropped: timing.

Convert TXT to JSON in your browser — dropped: timing.

Convert TXT to LRC in your browser — dropped: timing, precision.

TXT to MICRODVD

Convert TXT to MICRODVD in your browser — dropped: timing, frame rate.

Convert TXT to SBV in your browser — dropped: timing.

Convert TXT to SMI in your browser — dropped: timing.

Convert TXT to SRT in your browser — dropped: timing.

Convert TXT to SSA in your browser — dropped: timing, precision.

Convert TXT to TTML in your browser — dropped: timing.

Convert TXT to VTT in your browser — dropped: timing.

CSV

CSV Subtitle Format

What CSV can store, what it cannot, and every format you can convert it to or from.

Convert CSV to ASS in your browser — dropped: precision.

Convert CSV to JSON in your browser — nothing is lost in this direction.

Convert CSV to LRC in your browser — dropped: timing, precision.

CSV to MICRODVD

Convert CSV to MICRODVD in your browser — dropped: frame rate.

Convert CSV to SBV in your browser — nothing is lost in this direction.

Convert CSV to SMI in your browser — nothing is lost in this direction.

Convert CSV to SRT in your browser — nothing is lost in this direction.

Convert CSV to SSA in your browser — dropped: precision.

Convert CSV to TTML in your browser — nothing is lost in this direction.

Convert CSV to TXT in your browser — dropped: timing, line breaks.

Convert CSV to VTT in your browser — nothing is lost in this direction.

Other categories

Shift, scale, re-frame and re-align subtitle timing: frame-rate conversion, overlap and gap repair, trimming to a range and splitting a file into parts.

Text and styling

Change case, strip tags and SDH descriptions, recolour or reposition lines, merge or split bilingual tracks, find and replace, rewrap lines, fix encoding.

Detect structural subtitle defects: overlaps, gaps, empty cues, non-monotonic timing and unusual cue durations — one page per problem or all at once.

Accessibility compliance

Check subtitles against reading speed, line length and display-duration thresholds from EN 301 549, WCAG 1.2.2, FCC, Ofcom, Netflix and BBC rules.

Re-label subtitle timecodes between 30 fps non-drop and 29.97 drop-frame, two conventions that drift 3.6 seconds apart every hour, in both directions.

Export and integration

Turn subtitles into an HTML track element, a YouTube chapter list, a plain text transcript or a printable PDF — outputs no subtitle format can carry.

Extract subtitle tracks from video, transcribe speech with Whisper, OCR PGS and VobSub bitmaps, voice subtitles and resync audio — all inside your browser.