Add your SAMI file
Drop one or more .sami files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
SAMI to SRT
Converting a .sami file to .srt extracts the document's content from its office package into a portable form. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop SAMI files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting SAMI captions to SubRip subtitles
Converting a .sami file to .srt extracts the document's content from its office package into a portable form. A .sami file is the same Synchronized Accessible Media Interchange caption document as .smi, written with the long form of the extension. The contents are identical — <SYNC Start=…> elements inside an HTML-like SAMI document — and the long extension is chosen mainly to avoid colliding with SMIL files, which also claim .smi.
A .srt file is a SubRip subtitle document: numbered cues with start and end timestamps and plain caption text. It is the most common caption sidecar for video players, editors, and streaming toolchains that need a simple, widely understood text format. For this route the practical draw is universally understood by media players and editors and human-editable in any text editor — balanced against no standard support for advanced styling, voices, or regions, which is worth knowing before you commit a large batch.
Why convert SAMI to SRT?
The practical trigger for this conversion is usually a mismatch: with .sami, some players recognise only .smi and must be given a renamed copy. Switching to .srt buys you universally understood by media players and editors, which is why it is the better fit for delivering captions alongside MP4 or MKV downloads. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
SAMI vs SRT at a glance
| Aspect | SAMI captions (.sami) | SubRip subtitles (.srt) |
|---|---|---|
| Format type | Text-based — characters and structure, so there is no visual quality loss | Text-based — characters and structure, so there is no visual quality loss |
| How it stores data | byte for byte the same format as .smi: <SAMI>, <HEAD> with a <STYLE> block, and <BODY> with SYNC elements | cues are blocks of an index, a timecode arrow line (HH:MM:SS,mmm --> HH:MM:SS,mmm), one or more text lines, and a blank separator |
| Strongest at | storing SAMI captions where .smi would collide with SMIL files | delivering captions alongside MP4 or MKV downloads |
| Weak spot | some players recognise only .smi and must be given a renamed copy | no standard support for advanced styling, voices, or regions |
Pick SRT as the output
Select .srt in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if SRT is selectable, the route is real and validated.
Convert on your device
Press Convert. The package is unzipped in memory and its XML content parsed locally; nothing is uploaded.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid SRT file. Outputs keep the original filename with the .srt extension.
SAMI to SRT questions, answered
Will converting SAMI to SRT lose quality?
There is no visual quality to lose — sami is text-oriented and srt is text-oriented, so the question is structural fidelity. Text, ordering, and basic structure are preserved; complex layout, embedded objects, and styling beyond the target's model are simplified.
Is it private to convert SAMI files here?
Yes — the .sami file is processed inside your browser tab and never uploaded. The package is unzipped in memory and its XML content parsed locally; nothing is uploaded. Close the tab and the file is gone from memory.
Where will the SRT file work?
VLC, MPC-HC, PotPlayer, Premiere, HandBrake, YouTube, and virtually every desktop player ingest .srt. Browser video elements usually prefer WebVTT, so conversion is common for web delivery.
Will the SRT file be bigger or smaller than my SAMI?
It depends on the content: cues are blocks of an index, a timecode arrow line (HH:MM:SS,mmm --> HH:MM:SS,mmm), one or more text lines, and a blank separator. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my SAMI file?
In .sami, as with .smi, the style block and language classes describe presentation; only cue timing and text are carried into other formats. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.
Can I convert SRT back to SAMI?
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .sami → .srt → .sami is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.