Tools Download Video Convert Video Recipes Compress Video Change Speed Trim Video Crop & Resize Merge Videos Add Subtitles Audio & GIF Remove Audio Replace Audio Audio Cleanup GIF Maker
CAPTIONS & SUBTITLES

Burn in or embed subtitles effortlessly.

Merge SRT, VTT, and ASS caption files into your videos with customizable typography, colors, and timing offset.

SRT / VTT / ASSSoft & Hard SubtitlesAudio Sync Adjustment
Downly • Add Subtitles
macOS Native
Add Subtitles Engine
Apple Silicon Hardware Acceleration Active
• Ready to Process
Privacy Guarantee
100% On-Device
Processing Speed
M-Series GPU Max
Output Fidelity
Pristine Lossless
KEY CAPABILITIES

Built for Speed, Privacy & Precision

01

Soft or Hardcoded Captions

Export with switchable subtitle tracks or burn permanent readable text directly into the video.

02

Custom Typography & Styling

Customize font size, border outline, background opacity, and placement on the screen.

03

Millisecond Sync Offset

Fix out-of-sync caption files with a simple forward/backward timing slider.

HOW IT WORKS

Three Steps. Zero Hassle.

1

Import Video & Captions

Select your video and attach an SRT, VTT, or ASS subtitle file.

2

Customize Appearance

Choose styling, font sizing, and preview caption alignment.

3

Export Captioned Video

Generate a video ready for social feeds, language learners, or archives.

← Previous Tool
Merge Videos
Combine multiple video clips seamlessly.
Next Tool →
Audio & GIF
Dedicated audio extraction and animated GIF suite.
COMPLETE TOOLKIT

All 14 Downly Video Tools

Download Video

Download online video in pristine 4K & 8K.

Convert Video

Convert any video format at warp speed.

Recipes

One-click workflow presets tailored to you.

Compress Video

Shrink video file sizes without losing quality.

Change Speed

Speed up or slow down videos with pitch correction.

Trim Video

Cut and trim videos with millisecond precision.

Crop & Resize

Crop and reframe videos for any social platform.

Merge Videos

Combine multiple video clips seamlessly.

Current

Add Subtitles

Burn in or embed subtitles effortlessly.

Audio & GIF

Dedicated audio extraction and animated GIF suite.

Remove Audio

Strip audio tracks and create silent video in 1 click.

Replace Audio

Swap out audio with your own music or voiceover.

Audio Cleanup

Remove background noise, hum, and hiss locally.

GIF Maker

Create smooth, high-quality GIFs from any video.