How do I add a text-to-speech voiceover to a video?

Make the audio first, then bring it into your editor. Paste your script into a text-to-speech tool, pick a voice, and download the MP3. Then import that MP3 into your video editor as an audio track and line it up with your footage. Any editor that lets you add an audio file will work, so there is nothing special to set up on the video side.

Can I use the voice on YouTube or TikTok?

You can publish a video with a text-to-speech voiceover, but whether you can monetize it depends on the voice's license, not just the tool being free. The audio costs nothing to make. Before you build a whole channel on it, check the license terms for the voice you used and treat it as personal use until you have confirmed otherwise.

Do free voiceovers have a watermark?

A lot of them do. Free tiers often lay a spoken tag or a tone over your audio so the output is awkward to use in public, which nudges you to pay. It is not a technical requirement. The fix is to use a tool that downloads clean audio with nothing added, rather than trying to strip a watermark after the fact.

How do I download the voiceover as an MP3?

On an honest tool the download sits right next to the preview. You paste, press play to check it, then click download and get an MP3 in the same session. If the download only appears after a sign-up form or a plan screen, that is the bait-and-switch to avoid.

What if my script is long?

Paste your script and generate it. If your script is on the longer side, work through it a section at a time: run one part, download it, then do the next. Keep the same voice and speed for each section so the pieces sound consistent when you drop them onto the timeline back to back.

How to Make a Free Voiceover for a Video (Text to Speech MP3)

You have a video and you need a voice on it, but you don't want to record yourself, hire anyone, or end up with a spoken watermark stamped over your footage. Text to speech handles this. You write the script, paste it into a tool, pick a natural voice, and download a clean MP3 you drop straight into your editor. Here is the exact process, plus the parts most "free" tools quietly get wrong.

How do you make a free voiceover for a video?

The audio is the whole job, and it comes before you touch your editor. The flow looks like this:

Write your script the way you want it read out loud. Short sentences, natural phrasing, and punctuation where you want the voice to pause.
Open a text-to-speech tool in your browser. No install and no account needed.
Paste your script into the box.
Pick a voice and accent, then press play to hear it.
Set the speed if you want it a little slower or faster.
Download the MP3.

That's the voiceover done. The step that separates a real free tool from a bait-and-switch is the download. On an honest one it's right there in the same session. On the others, the paywall or the email form shows up the moment you try to save the file.

Do free text-to-speech voiceovers have a watermark?

Often, yes, and it's worth knowing why before you spend time on a tool. A watermark is something added to your audio that you did not ask for, usually a spoken line naming the service or a repeating tone. It has nothing to do with generating speech. It exists so the free output is embarrassing enough to post publicly that you pay to remove it. So don't go looking for a way to strip a watermark. Just start with a tool that never adds one, and check the actual downloaded file, not the homepage headline that says "no watermark."

Which voice should you pick for a video voiceover?

This matters more than any setting, so preview a few before you commit. Natural neural voices sound like a person reading, not the flat robotic reader from a decade ago. For most videos you'll want to choose by accent and tone:

US voices: Aria reads warm, Guy reads steady, Jenny reads friendly.
UK voices: Sonia is crisp, Ryan is calm.
Australian: Natasha is bright.

An explainer or a product demo usually wants something steady and clear. A story or a lifestyle clip can take a warmer read. Play the same line in two or three voices and pick the one that fits the video, not the one that sounds most impressive on its own.

How do you set the pace so it matches your footage?

Speed is the one setting worth touching before you export. A touch slower suits narration and anything you want to feel deliberate. A touch faster suits a quick, punchy edit. Set it before you download so the MP3 is baked at the pace you want, and you don't have to re-do it later. If a single line still feels rushed or crammed, add a comma or split it into two sentences in your script. The voice pauses on punctuation, so small script edits fix pacing better than fighting it in the editor.

What if your script is long?

Paste your script and run it. If it's on the longer side, work through it a section at a time. Generate one part, download it, then do the next, keeping the same voice and the same speed each time so the pieces match. When you line them up on your timeline they'll read as one continuous voiceover. This also gives you a natural way to re-do a single section if you tweak the wording, instead of regenerating the whole thing.

How do you get the voiceover into your video editor?

Once you have the MP3, the video side is simple. Import the file into your editor as an audio track. It works the same way in CapCut, Premiere, DaVinci Resolve, iMovie, Clipchamp, or anything else that accepts an audio file. Drag it onto the timeline, then nudge it so the words land with your visuals. Because the audio is a clean MP3 with nothing laid over it, you're free to add your own music bed underneath without the voice fighting a watermark tone. If you built the voiceover in sections, drop them in order and butt them up against each other. Small gaps between clips read as natural breaths.

That's the whole workflow. If you want a tool that meets this bar, JustListen lets you paste a script, pick a natural US, UK, or Australian voice, and download a clean MP3 for free, with no watermark and no account, so the only thing on your video is the voice you chose.