Free subtitle converter. Done in seconds.

Convert subtitles online to SRT, VTT, ASS, SBV, TTML, SUB, SMI, LRC and more, one file or a hundred at once. Free, no download or sign-up, and your files never leave your browser.

Subtitle fileStays on your device

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SRT, VTT, ASS, SBV, TTML, SUB, SMI, LRC and more · up to 100 files

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Or paste subtitle text

Subtitle text

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Your file is read by this page in your browser. It is not uploaded anywhere.

Nothing is uploadedNo account or limitsTimings and italics kept

Three steps, no upload.

The conversion runs on your own device, so it is fast and private.

Open your subtitle files
Choose files, drop them on the page or paste the text of one. The format is recognized automatically.
Choose the new format
Pick the format you need and check the result in the preview.
Download it
Save the converted file, or all of them as a ZIP. They are ready for your player, editor or website.

Every common subtitle format.

Open any of these files and save it in any format marked Yes. Words, timings, line breaks and italic, bold and underline carry over; fonts, colors and positions from ASS and TTML files, and WebVTT placement, do not.

Supported subtitle formats
Format	Extension	Best for	Open	Save
SRT	.srt	Video players, TVs, video editors and most video sites	Yes	Yes
WebVTT	.vtt	Video on web pages and in browsers	Yes	Yes
ASS	.ass	Styled subtitles, anime and MKV files	Yes	Yes
SSA	.ssa	Older styled subtitles	Yes	Saved as ASS
SBV	.sbv	YouTube captions	Yes	Yes
TTML / DFXP	.ttml .dfxp .xml	Broadcast, streaming and professional captioning	Yes	Yes
MicroDVD	.sub	Older films and DivX-era subtitles; timed in frames	Yes	Yes
SubViewer	.sub	Older subtitle editors	Yes	No
SAMI	.smi	Windows Media and Korean subtitles	Yes	Yes
LRC	.lrc	Synced song lyrics for music players	Yes	Yes
CSV	.csv	Spreadsheets, reviews and translation work	Yes	Yes
Spruce STL	.stl	DVD authoring in DVD Studio Pro; timed in frames	Yes	Yes
TXT	.txt	Transcripts, notes and quotes	No	Yes

Download a sample file in each format

More subtitle tools

Subtitle time shifter
Fix subtitles that are out of sync: move every caption earlier or later, convert between frame rates, or match two captions to the video. Free, in your browser.
Subtitle cleaner
Clean up SRT, VTT and ASS subtitles: remove [sound descriptions], speaker names, repeated captions and overlaps, or strip formatting. Free and private.
Subtitle to text converter
Turn an SRT, VTT, ASS or SBV subtitle file into readable plain text: remove timestamps and numbers, join lines into paragraphs, or keep a time for each line.

Convert between formats

About Free Subtitle Converter

A free subtitle converter that works in your browser

Free Subtitle Converter is a free online subtitle converter for anyone who works with captions: video editors, YouTubers, translators, teachers and people who simply want the subtitles for a film to play. Open a subtitle file, choose the format you need and download the result. There is nothing to install, no account to create and no watermark, and the conversion happens on your own device, so your files are never uploaded.

Most subtitle problems come down to format. A TV reads SRT but not ASS, a web player wants WebVTT, YouTube exports SBV, and streaming services deliver TTML or DFXP. This tool reads all of them, plus MicroDVD SUB, SubViewer, SAMI, LRC and CSV, and saves them in the format your player, editor or website expects.

Free subtitle converter online, no download needed

Many people look for a subtitle converter as a free download, expecting to install a program. You do not have to. Free Subtitle Converter is a web app, so it runs in Chrome, Edge, Firefox, Safari and other modern browsers on Windows, macOS, Linux, Android, iPhone and iPad. Because the page does the work locally, it is as private as desktop software, and often faster, since nothing has to travel to a server and back.

Free subtitle converter to SRT

SRT, also called SubRip, is the most widely supported subtitle format. Almost every video player, smart TV, game console, editing program and video site accepts it, which is why converting subtitles to SRT is the most common job people bring here. Open your VTT, ASS, SSA, SBV, TTML, DFXP, SUB, SMI or LRC file, choose SRT as the new format and download it.

Every caption keeps its start and end time, its words and its line breaks, and italic, bold and underline are carried over as SRT tags. If you only need one pair, the pages for VTT to SRT, ASS to SRT, SBV to SRT and the others below open with the right settings already chosen.

More than a subtitle converter

Converting is often only the first step. When subtitles appear too early or too late, the subtitle time shifter moves every caption by the amount you choose. The subtitle cleaner removes hearing-impaired notes, speaker names, music symbols and leftover formatting tags. Subtitle to text turns captions into a clean transcript you can quote, translate or publish. Each tool handles up to 100 files at once, each up to 20 MB, and you can download the results one by one or together as a ZIP.

What makes the best free subtitle converter?

When you compare free subtitle converters, look at four things. The first is privacy: many online converters upload your file to their servers, which is a problem for unreleased videos, client work and private recordings. The second is accuracy: a good converter keeps timings to the millisecond and does not drop lines, merge captions or break accented and non-Latin characters.

The third is format coverage, including older formats such as SAMI and MicroDVD that newer tools often ignore. The fourth is honesty about limits: no surprise watermarks, no paywall after the first file and no required sign-up. Free Subtitle Converter was built around these points. It recognizes a format from the contents of the file rather than its name, lets you pick the right text encoding for older files, and always saves clean UTF-8 that modern players read correctly.

Free Subtitle Converter or Subtitle Edit?

Subtitle Edit is a popular free, open-source desktop program for creating and editing subtitles line by line, syncing them against video and checking spelling. If you need a full editor, it is an excellent choice. If you only need to change a format, fix an offset or clean up a file, Free Subtitle Converter is quicker: there is nothing to install, it works on a phone, a Mac or a Chromebook, and you can convert a whole folder of files in a few clicks.

Many people use both, converting here and opening the result in an editor when they need detailed changes. Free Subtitle Converter is an independent project and is not affiliated with Subtitle Edit.

Downloaded free subtitles that will not play?

Subtitles from free subtitle download sites come in many formats and encodings. A file might be a MicroDVD SUB timed in frames, an ASS file your TV ignores, or an SRT saved in an old encoding that shows strange symbols instead of accented letters. Open it here, check the preview, choose a different text encoding if the letters look wrong, and save it as SRT or whichever format your player needs. If the captions are out of step with the video, shift them in the same visit.

This site does not host or share subtitle files; it only converts files you already have. Please convert only subtitles you have the right to use.

How your files stay private

When you open a file, your browser reads it, converts it with code that runs on the page and offers the new file as a download. No subtitle text is sent to a server, logged or stored, and nothing is kept once you close the tab. That makes the converter safe for confidential work such as unreleased films, internal training videos and client projects.

Subtitle help

Short guides to subtitle formats, timing, encodings and getting captions to show up where you need them.

Read all articles

SRT vs VTT: what is the difference and which should you use?
Compare SRT and WebVTT subtitle files, see where each one works best and convert between them without losing your timings.
How to fix subtitles that are out of sync
Work out whether your subtitles are early, late or drifting, then fix them with a time shift, a frame-rate change or a two-point sync.
Why subtitles show strange characters, and how to fix the encoding
Fix subtitles that show symbols such as Ã©, � or question marks instead of accented letters, Cyrillic, Arabic or other scripts.
ASS and SSA subtitles explained: styles, effects and conversion
What ASS and SSA subtitle files can do that SRT cannot, why anime and fan subtitles use them, and what changes when you convert them.
How to add an SRT or VTT subtitle file to a video
Load a subtitle file in a video player, a video editor or a web page, and fix the most common reasons subtitles do not show.
What are SDH subtitles, and when should you remove the extra text?
Understand subtitles for the deaf and hard of hearing, how they differ from closed captions and regular subtitles, and when a clean version is useful.

Good questions.
Straight answers.

Is this subtitle converter free?

Yes. Every tool on this site is free to use, with no account and no sign-up. You can work on up to 100 files at a time, each up to 20 MB.

Are my subtitle files uploaded?

No. The page reads your file in your browser and creates the new file there too. Your subtitles are never sent to a server, so the tools also work for unreleased or private material.

Which formats can I convert?

You can open SRT, WebVTT (VTT), ASS, SSA, YouTube SBV, SubViewer, TTML, DFXP, MicroDVD SUB, SAMI (SMI), LRC, CSV and Spruce STL files, and save them as SRT, VTT, ASS, SBV, TTML, DFXP, SUB, SMI, LRC, CSV, STL or plain text. The format is detected from the contents of the file, not its name.

What is the difference between SRT and VTT?

Both store the same captions as plain text. SRT numbers each caption and uses a comma before the milliseconds, and it works in almost every player, TV and video editor. VTT (WebVTT) starts with a WEBVTT header and uses a dot instead, and it is the format web browsers need for video on a web page. The SRT vs VTT guide on the blog compares them in detail.

Does converting change the timing or the text?

No. Every caption keeps its start and end time, its words and its line breaks. Italic, bold and underline are kept. Styling that the new format cannot store, such as ASS fonts and positions or WebVTT placement, is left out. Converting never translates: the words stay in their original language.

Why does my file show strange characters?

The file was saved in an older encoding. After opening it, choose the language group it was made for under Text encoding. The file you download is always saved as UTF-8, which modern players read correctly.

Can I convert subtitles on my phone?

Yes. The tools work in any modern mobile browser. The converted file is saved wherever your browser keeps downloads, usually the Downloads folder or the Files app.

Can I convert several files at once?

Yes. Choose or drop up to 100 files together. Every file is converted with the same settings, and you can download them one by one or all together as a ZIP.

Do I need to download a subtitle converter?

No. Free Subtitle Converter runs in your web browser, so there is nothing to download or install. It works on Windows, macOS, Linux, Chromebooks, Android phones, iPhones and iPads.

Can I download subtitles here?

No. This site does not host subtitle files. If subtitles you downloaded elsewhere will not play, open them here to convert them to SRT or another format, choose the right text encoding or shift their timing.

Can it make subtitles from a video?

No. Free Subtitle Converter works with subtitle files you already have, and because nothing is uploaded, it cannot transcribe the audio of a video. If your video editor or video platform created captions for you, export them as SRT or VTT and open that file here to convert, shift or clean it.