SRT Merger

MiniWebtool’s SRT Merger combines subtitle content into one SRT file. Choose sequential or overlapping timelines, adjust timing where needed, and renumber cues while retaining subtitle formatting.

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Help me understand MiniWebtool's SRT Merger: https://miniwebtool.com/srt-merger/. What can I use it for, what inputs or settings do I need, and how do I use it and understand the output? Walk me through one simple example. Use this page as your source and answer in English.

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Subtitle Timeline Editor

Merge, combine and synchronize SRT files

Primary Subtitle File

Click to upload or drag & drop

Secondary Subtitle File

Click to upload or drag & drop

Merge Options

Merge Mode

Sequential (append) Overlay (same timeline)

Time Offset (seconds)

Embed SRT Merger Widget

About SRT Merger

Welcome to the SRT Merger, a professional-grade subtitle combining tool designed for video editors, content creators, and subtitle translators. Easily merge multiple SRT subtitle files into a single seamless file with automatic timestamp adjustment, index renumbering, and support for both sequential and overlay merge modes.

At a Glance

SRT Merger combines two SRT subtitle files into one. Sequential mode places the second file after the first, and overlay mode keeps both on the same timeline. Cues are renumbered automatically.

SRT Merger: features at a glance
Feature	What you get	Good for
Sequential mode	File 2 is appended after File 1, with its timestamps shifted forward by the length of File 1.	Subtitles for clips joined into one video
Overlay mode	Both files share one timeline, File 2 keeps its timestamps, and cues are sorted by start time.	Dual-language subtitles or added commentary
Time offset	Enter seconds, decimals allowed such as 2.5, to add a gap or shift the second file.	Matching a transition or an edit point
Drag and drop	Drag an SRT file onto an input area, browse for one, or paste the subtitle text.	Loading files quickly in any form
Formatting kept	Styling tags such as <i> and <b>, special characters, Unicode and multi-line text stay unchanged. Only numbers and timestamps change.	Subtitles with italics or non-English text
Preview and save	Review the merged result with statistics, then copy it or download an .srt file.	Checking timing before using the file
More than two files	Merge two files, paste the result as File 1, then add the next one.	Combining a whole series of subtitle files

Key Features

Drag & Drop Upload

Simply drag your SRT files onto the input areas or click to browse. Supports direct paste for quick editing.

Two Merge Modes

Sequential mode for joined videos, or Overlay mode for dual-language subtitles on the same timeline.

Time Offset Control

Add precise time gaps or shifts between merged files with millisecond accuracy.

Format Preservation

Maintains all styling tags, special characters, and multi-line text from your original subtitles.

Understanding SRT Format

SRT (SubRip Subtitle) is the most widely supported subtitle format. Each subtitle entry consists of three parts:

example.srt

11
200:00:01,000 --> 00:00:04,500
3Hello, welcome to the video!
4
52
600:00:05,000 --> 00:00:08,200
7This is the second subtitle line.

Index Number: Sequential identifier for each subtitle (automatically renumbered when merging)
Timestamp: Start and end times in HH:MM:SS,mmm format, separated by " --> "
Text Content: The actual subtitle text, can span multiple lines

Merge Modes Explained

SRT Merger: Merge Modes Explained
Mode	Best For	How It Works
Sequential	Merged/concatenated videos	Appends File 2 after File 1 ends. Timestamps for File 2 are shifted forward by the duration of File 1 (plus any offset).
Overlay	Dual-language subtitles	Combines both files on the same timeline. File 2 timestamps are preserved (with optional offset). Result is sorted by start time.

How to Use the SRT Merger

Add your first SRT file: Drag and drop, upload, or paste your first subtitle content into the "File 1" area.
Add your second SRT file: Similarly add your second subtitle file to the "File 2" area (optional if you only need to reformat one file).
Select merge mode: Choose "Sequential" for videos joined end-to-end, or "Overlay" for dual subtitles on the same video.
Set time offset (optional): Enter seconds to add a gap or shift timestamps. Use decimals for precision (e.g., 2.5 seconds).
Click "Merge SRT Files": The tool processes your files and displays the merged result with statistics.
Copy or download: Use the action buttons to copy the result to clipboard or download as an .srt file.

Common Use Cases

Merging Subtitles for Video Compilation

When you combine multiple video clips into a single video (e.g., using video editors like Premiere Pro, Final Cut, or DaVinci Resolve), the subtitle files also need to be merged. Use Sequential mode with appropriate time offsets to match your video edit points.

Creating Dual-Language Subtitles

For multilingual content, use Overlay mode to combine subtitles in different languages. Both will appear on the timeline, and viewers can see translations alongside the original text.

Adding Commentary or Notes

Educational content creators can overlay explanatory subtitles onto existing dialogue subtitles using the Overlay mode, creating a richer viewing experience.

Tips for Best Results

Check timestamps: Ensure your source SRT files have valid timestamp formats (HH:MM:SS,mmm)
Preview before downloading: Always review the merged output to catch any timing issues
Use offset for gaps: When merging sequential clips, add a small offset (1-2 seconds) if there's a transition between videos
Merge multiple files: To merge more than 2 files, merge the first two, then merge the result with the third file

Frequently Asked Questions

What is an SRT file and how does the merger work?

SRT (SubRip Subtitle) is a plain text subtitle format containing numbered entries with timestamps and text. The SRT Merger combines multiple SRT files by parsing their timestamps, adjusting timing based on your chosen merge mode, and renumbering entries to create a single valid SRT file.

What is the difference between Sequential and Overlay merge modes?

Sequential mode appends the second subtitle file after the first, perfect for merged videos. Overlay mode combines subtitles by timeline without adjusting timestamps, ideal for dual-language subtitles or adding commentary to existing subtitles.

How do I add a gap between merged subtitle files?

Use the Time Offset field to add seconds between files. For sequential merge, enter a positive number (e.g., 5) to add a 5-second gap. For overlay merge, the offset shifts the second file's timestamps forward or backward.

Can I merge more than two SRT files?

Yes! First merge two files, then copy the result and paste it as File 1, then add your third file as File 2. Repeat this process to merge any number of SRT files sequentially.

Will the merger preserve subtitle formatting and special characters?

Yes, the SRT Merger preserves all subtitle text including HTML-style formatting tags (like <i>, <b>), special characters, unicode, and multi-line subtitles. Only the index numbers and timestamps are modified.

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Reference this content, page, or tool as:

"SRT Merger" at https://MiniWebtool.com/srt-merger/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Jan 26, 2026

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