Instantly Add SRT to MKV Files Online

Merge your high-quality MKV video and SRT subtitle file into a single, web-ready MP4. Our tool hardcodes your captions for perfect playback on any platform, from social media to your own website. Free, fast, and no software required.

Wavel how it works

Experience Wavel AI tools in Action

AI Dubbing
AI Subtitle
Text to Speech
Voice Changer
AI CLips
Text to Video
Voice Cloning

Seamless AI voice dubbing in multiple languages to create perfect voice dubs that sound just like you, in any language.

Auto-generate accurate, time-synced AI subtitles in any language, fast and hassle-free.

Instantly convert written text to high-quality voice with text to speech, real human voices made with AI.

Clone voices with stunning accuracy to create personalized audio at scale. No voice actors needed.

Turn one video into multiple scroll-stopping clips using the AI Clip Generator.

Turn your script into ready-to-share videos with visuals, voice, and subtitles with AI video generator.

Transform any voice with Wavel’s AI voice changer realistic, expressive, and customizable in any style or accent.

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Transcription
Transcription 4.5
5
by G2 Users
Transcription
Transcription 4.9
5
on Product Hunt
Transcription
Transcription 4.8
5
on Slashdot

The platform is easy to use and helps me with the translation of articles and video subtitles for social media. We use it daily to assist us in dubbing videos for our clients without needing to record a new video every time we serve a client from a different country.

Make MKV Videos Accessible with SRT Subtitles

Get Started

Ever watched a video without subtitles and struggled to follow along? With Wavel AI, you can easily add SRT to MKV files online to give your videos the clarity and accessibility they deserve. Simply upload your MKV file, add or generate an SRT subtitle file, and let Wavel AI align everything using AI-powered timecode matching and subtitle rendering. You can personalize your captions by choosing font size, color, and placement, making your video both professional and easy to watch. Once done, export the final video in MKV format with embedded subtitles, or keep the subtitles separate in SRT or VTT for flexibility. Use a video translator to create multiple language versions of your SRT. Beyond subtitles, Wavel AI also offers AI dubbing, voiceovers, and speech-to-text transcription, helping you create truly multilingual and inclusive video experiences without the heavy production costs.

Your All-in-One AI Studio for Video & Audio Creation

Built for creators, teams, and global brands ready to scale.

Jump between video, voice, and script tools without missing a beat.

Cut production time, keep every ounce of creative control.

How to Add SRT to MKV

wavel

Curated for every use case

Frequently Asked Questions

Need Extra Reasons to Love Wavel AI?

wavel wavel
wavel

For Sales Teams

Create pitch-perfect video demos, walkthroughs, and personalized outreach — all from one place. Sell smarter, not harder.

wavel

For E-Learning Platforms

Create immersive, multilingual learning experiences at scale. From voiceovers to subtitles — all in one tool.

wavel

For Marketers

Run campaigns faster with AI-powered video ads, social clips, and repurposed content — no jumping between tools.

wavel

For HR Teams

Onboard, train, and engage employees with AI-powered video content — no editing expertise required.

wavel

For Educators

Record, dub, subtitle, and share lessons in minutes. Teach more effectively with zero tech hassle.

wavel

Short Clips

Create bite-sized video snippets in a click

wavel

For Customer Support

Turn FAQs into explainer videos, localize them with voiceovers and subtitles, and reduce ticket load effortlessly.

Hear From Our Community

Listen to what real users love about Wavel AI straight from the Wavel Community.

Anna P.

Anna P.

Senior Social Media Manager

Wave AI is truly a remarkable company that has revolutionized the way we perceive voices and language solutions. Their comprehensive approach, which encompasses a wide array of language solutions under one roof, is nothing short of impressive. With a strong focus on the positive aspects of our voices, Wave AI has brought a refreshing perspective to the industry. Their commitment to innovation and excellence is evident in every aspect of their work. It's a pleasure to partner with a company that embodies such a forward-thinking and customer-centric approach.

Slashdot Rating
Rated 5/5
View review
Stephen H.

Stephen H.

Marketing

As a content creator, I've always sought innovative tools to enhance the quality and impact of my work, and Wavel AI has quickly become my go-to choice for voiceovers. With a library spanning over 250 voices and supporting more than 40 languages, I've been able to cater to a global audience effortlessly. Tutorial videos and chat bot also really prompt to help.

Slashdot Rating
Rated 4/5
View review
Salim L.

Salim L.

Manager

The option to Collab is amazing because as a content creator, collaborations are quite frequent. Different team members are able to view and edit files, work on the same content concurrently, and share inputs, allowing for true real-time collaboration. You don't have to individually notify anyone. They will get to know your activity which cuts down extra time.

Slashdot Rating
Rated 5/5
View review
Chiranjeevi n.

Chiranjeevi n.

Growth Marketer

I was happy with its realistic AI voiceovers, their support during problems and multilingual support as well which makes it an ideal tool for content creators like us who need a high quality voice generation for work or use and its ease of use, implement and integration was a cherry on top.

G2 Rating
Rated 4.5/5
View review
Peter M.

Peter M.

Graphic Designer

The voice cloning ability is one of its outstanding ones in Wavel.ai. It can mimic the voice of a person with such precision that it can accurately reflect the tonal variations as well as the impassioned modulation of a person. The speed and the performance of the tool in processing audios are also good; very time-saving for the content producers.

G2 Rating
Rated 5/5
View review
Keegan D.

Keegan D.

Video Editor

As a video editor i need many audios for my video and also i have to perform some editing with dubbing or subtitle related part and here WavelAi solve my approx all problem in just a minutes.

G2 Rating
Rated 5/5
View review
Matt Han

Matt Han

IT Company Marketer

Wave AI is truly amazing! One of its most impressive features is the Voice Cloning function. This function allows you to create long-hour video content with authentic voices that do not require human interpretation. You can even include the voice of your favorite singer powered by AI.

Product Hunt Rating
Rated 5/5
View review
Roberto Gómez

Roberto Gómez

Co-founder

Really cool tool. I run an international company and I have thought about new use cases in order to generate content for my audiences. It works really well and looking forward to the evolution of this technology.

Product Hunt Rating
Rated 5/5
View review
Alex Fall

Alex Fall

AI enthusiast and Product Manager

You can fine-tune the audio output to meet your specific needs, whether you want to adjust the voice speed, tone, or volume. This level of control is especially useful if you're creating audio content for a particular audience. When it comes to audio output quality, Wavel AI is outstanding.

Product Hunt Rating
Rated 5/5
View review

Instantly Add SRT to MKV Files Online

Merge your high-quality MKV video and SRT subtitle file into a single, web-ready MP4. Our tool hardcodes your captions for perfect playback on any platform, from social media to your own website. Free, fast, and no software required.

Wavel how it works

Experience Wavel AI tools in Action

AI Dubbing
AI Subtitle
Text to Speech
Voice Changer
AI CLips
Text to Video
Voice Cloning

Seamless AI voice dubbing in multiple languages to create perfect voice dubs that sound just like you, in any language.

Auto-generate accurate, time-synced AI subtitles in any language, fast and hassle-free.

Instantly convert written text to high-quality voice with text to speech, real human voices made with AI.

Clone voices with stunning accuracy to create personalized audio at scale. No voice actors needed.

Turn one video into multiple scroll-stopping clips using the AI Clip Generator.

Turn your script into ready-to-share videos with visuals, voice, and subtitles with AI video generator.

Transform any voice with Wavel’s AI voice changer realistic, expressive, and customizable in any style or accent.

Toggle Off
Mute/Unmute
languague

English

languague

Spanish

languague

French

languague

Hindi

languague

Japanese

languague

German

languague

Russian

Toggle Off
Toggle Off btndefault
Toggle Off Product Demo
Toggle Off Podcast
Toggle Off Learning Module
Toggle Off Read Article

0/500

Play/Pause
Play Output

Darth Vader - Orginal

Original

Play Input
Play Output
Play Output

Darth Vader - Clone

Clone

Play Output
Play Output

Neil Tyson - Original

Original

Play Input
Play Output
Play Output

Neil Tyson - Clone

Clone

Play Output
Play Output

Oprah Winfrey - Orginal

Original

Play Input
Play Output
Play Output

Oprah Winfrey - Clone

Clone

Play Output
languague

Original Voice

languague

Character Voice

languague

Female Voice

languague

Deep Voice

Build a Celebrated AI Voice Brand – Trusted by Industry Leaders!

Transcription
Transcription 4.5
5
by G2 Users
Transcription
Transcription 4.9
5
on Product Hunt
Transcription
Transcription 4.8
5
on Slashdot

The platform is easy to use and helps me with the translation of articles and video subtitles for social media. We use it daily to assist us in dubbing videos for our clients without needing to record a new video every time we serve a client from a different country.

Make MKV Videos Accessible with SRT Subtitles

Get Started

Ever watched a video without subtitles and struggled to follow along? With Wavel AI, you can easily add SRT to MKV files online to give your videos the clarity and accessibility they deserve. Simply upload your MKV file, add or generate an SRT subtitle file, and let Wavel AI align everything using AI-powered timecode matching and subtitle rendering. You can personalize your captions by choosing font size, color, and placement, making your video both professional and easy to watch. Once done, export the final video in MKV format with embedded subtitles, or keep the subtitles separate in SRT or VTT for flexibility. Use a video translator to create multiple language versions of your SRT. Beyond subtitles, Wavel AI also offers AI dubbing, voiceovers, and speech-to-text transcription, helping you create truly multilingual and inclusive video experiences without the heavy production costs.

The Ultimate Tool to Embed SRT in Your MKV Videos

We have built a powerful editor that simplifies every step of the process, from upload to export.

Effortless MKV and SRT Upload

Our tool is optimized to handle the MKV container format. Simply upload your MKV video and your SRT subtitle file. Our smart timeline will automatically sync them based on the SRT's timestamps, giving you an instant preview.

Voices

Your All-in-One AI Studio for Video & Audio Creation

Built for creators, teams, and global brands ready to scale.

Jump between video, voice, and script tools without missing a beat.

Cut production time, keep every ounce of creative control.

Powerful Subtitle Style Editor

Bring your SRT file to life. Go beyond plain text by using our intuitive style options. Change the font to match your brand, pick a custom color, adjust the size for readability, and add a background for contrast.

Voices

Generate New Subtitles for Your MKV

Even if your goal was to add an existing SRT, sometimes you need to create captions from scratch. If you have an MKV without a subtitle file, use our integrated auto subtitle generator to transcribe the audio with near-perfect accuracy.

Voices

Multi-Language Support & AI Dubbing

After embedding your translated subtitles, take your content to the next level. Our platform also offers realistic ai dubbing, allowing you to create a complete, multi-language version of your video with a native-sounding voiceover.

Voices

How to Add SRT to MKV Files Online

Step 1: Upload Your MKV Files

Upload an existing SRT file, or let Wavel AI automatically generate one using AI-powered speech recognition and precise timecode alignment.

Step 2: Add or Generate SRT File

Upload an existing SRT file, or let Wavel AI automatically generate one using AI-powered speech recognition and precise timecode alignment.

Step 3: Customize Subtitles

Preview your video and edit subtitle timing, font style, color, and placement to ensure your captions are clear and visually engaging.

Step 4: Export Your Merged MP4 File

Click the Export button. We will process your files, permanently burning the SRT subtitles and converting your MKV to a new, ready-to-share MP4 video.

wavel

Curated for every use case

For Video Enthusiasts & Creators

You have downloaded or created a high-definition video in MKV format and now want to share it. Our tool is the final step to get it ready for the web. Turn your HD MKV files into captivating, subtitled ai shorts or longer-form content for YouTube, ensuring perfect playback and accessibility for your audience.

Voices
Voices

For Marketers & Corporate Teams

You have received a master video file from a production house in MKV format. Quickly and easily add your branded, translated subtitles and convert the video for use in ad campaigns, on your website, or in internal presentations without needing to ask for a different format.

For Educators & Content Curators

Your library of educational films and documentaries is in MKV format. Our tool makes it simple to add clear, legible subtitles for accessibility and convert the files for seamless streaming on your online course platform or Learning Management System (LMS). Enhance the learning experience by generating an audio track from the text with a text to speech tool.

Voices

Frequently Asked Questions

What is the easiest way to add an SRT file to an MKV video? wavel
Using a browser-based tool like ours is the simplest method. It allows you to upload both files, sync them, customize the look, and export a single, universally compatible MP4 file without installing any software or codecs.
Will your tool convert my MKV to MP4 with subtitles? wavel
Yes, this is a core part of the process. We hardcode your subtitles and convert the MKV to MP4 simultaneously to guarantee your final video will play anywhere.
Why do not my subtitles show up when I upload my MKV to a website? wavel
Most websites and social media platforms cannot read external subtitle files like SRTs paired with an MKV. The subtitles must be hardcoded to be visible, which our tool does automatically.
Does hardcoding subtitles reduce the quality of my MKV video? wavel
No. We are designed to preserve the original quality of your source video. The subtitles are overlaid on top of your high-quality video, and the final export maintains the same resolution and clarity.
Can I combine an MKV and SRT file online for free? wavel
Yes. Our free tier provides all the core functionality you need to merge your files and export a new video with a small, unobtrusive watermark.
My SRT file is not in sync with my MKV. Can I fix it? wavel
Yes. Our timeline editor allows you to adjust the overall offset of your subtitle track, shifting all captions forward or backward until they are perfectly synchronized with the audio in your video.
Do I need to install a special codec pack or software like HandBrake? wavel
Not at all. Our platform is 100% online. We handle all the complex processing and codecs on our servers, saving you the hassle of installing and configuring desktop software.
What if I don't have an SRT file for my MKV video? wavel
No problem. You can use our integrated AI-powered subtitle generator to automatically create a new, accurate SRT file from your MKV's audio track.
Are there file size limitations for uploading MKV files? wavel
Our free plan is generous and suitable for most online video clips. For very large files, such as full-length movies, our premium plans offer much higher file size and processing limits.

Need Extra Reasons to Love Wavel AI?

wavel wavel
wavel

For Sales Teams

Create pitch-perfect video demos, walkthroughs, and personalized outreach — all from one place. Sell smarter, not harder.

wavel

For E-Learning Platforms

Create immersive, multilingual learning experiences at scale. From voiceovers to subtitles — all in one tool.

wavel

For Marketers

Run campaigns faster with AI-powered video ads, social clips, and repurposed content — no jumping between tools.

wavel

For HR Teams

Onboard, train, and engage employees with AI-powered video content — no editing expertise required.

wavel

For Educators

Record, dub, subtitle, and share lessons in minutes. Teach more effectively with zero tech hassle.

wavel

Short Clips

Create bite-sized video snippets in a click

wavel

For Customer Support

Turn FAQs into explainer videos, localize them with voiceovers and subtitles, and reduce ticket load effortlessly.

Hear From Our Community

Listen to what real users love about Wavel AI straight from the Wavel Community.

Anna P.

Anna P.

Senior Social Media Manager

Wave AI is truly a remarkable company that has revolutionized the way we perceive voices and language solutions. Their comprehensive approach, which encompasses a wide array of language solutions under one roof, is nothing short of impressive. With a strong focus on the positive aspects of our voices, Wave AI has brought a refreshing perspective to the industry. Their commitment to innovation and excellence is evident in every aspect of their work. It's a pleasure to partner with a company that embodies such a forward-thinking and customer-centric approach.

Slashdot Rating
Rated 5/5
View review
Stephen H.

Stephen H.

Marketing

As a content creator, I've always sought innovative tools to enhance the quality and impact of my work, and Wavel AI has quickly become my go-to choice for voiceovers. With a library spanning over 250 voices and supporting more than 40 languages, I've been able to cater to a global audience effortlessly. Tutorial videos and chat bot also really prompt to help.

Slashdot Rating
Rated 4/5
View review
Salim L.

Salim L.

Manager

The option to Collab is amazing because as a content creator, collaborations are quite frequent. Different team members are able to view and edit files, work on the same content concurrently, and share inputs, allowing for true real-time collaboration. You don't have to individually notify anyone. They will get to know your activity which cuts down extra time.

Slashdot Rating
Rated 5/5
View review
Chiranjeevi n.

Chiranjeevi n.

Growth Marketer

I was happy with its realistic AI voiceovers, their support during problems and multilingual support as well which makes it an ideal tool for content creators like us who need a high quality voice generation for work or use and its ease of use, implement and integration was a cherry on top.

G2 Rating
Rated 4.5/5
View review
Peter M.

Peter M.

Graphic Designer

The voice cloning ability is one of its outstanding ones in Wavel.ai. It can mimic the voice of a person with such precision that it can accurately reflect the tonal variations as well as the impassioned modulation of a person. The speed and the performance of the tool in processing audios are also good; very time-saving for the content producers.

G2 Rating
Rated 5/5
View review
Keegan D.

Keegan D.

Video Editor

As a video editor i need many audios for my video and also i have to perform some editing with dubbing or subtitle related part and here WavelAi solve my approx all problem in just a minutes.

G2 Rating
Rated 5/5
View review
Matt Han

Matt Han

IT Company Marketer

Wave AI is truly amazing! One of its most impressive features is the Voice Cloning function. This function allows you to create long-hour video content with authentic voices that do not require human interpretation. You can even include the voice of your favorite singer powered by AI.

Product Hunt Rating
Rated 5/5
View review
Roberto Gómez

Roberto Gómez

Co-founder

Really cool tool. I run an international company and I have thought about new use cases in order to generate content for my audiences. It works really well and looking forward to the evolution of this technology.

Product Hunt Rating
Rated 5/5
View review
Alex Fall

Alex Fall

AI enthusiast and Product Manager

You can fine-tune the audio output to meet your specific needs, whether you want to adjust the voice speed, tone, or volume. This level of control is especially useful if you're creating audio content for a particular audience. When it comes to audio output quality, Wavel AI is outstanding.

Product Hunt Rating
Rated 5/5
View review