SRT to STL Converter

You need captions in the Spruce STL text shape for a DVD or broadcast authoring tool. Unlike SRT, STL lines carry HH:MM:SS:FF frame timecodes, use a comma between start and end, and put the text after two spaces — no cue numbers, no arrows.

The SRT to STL Converter maps each SRT cue to that format. It converts milliseconds to whole frames at your chosen FPS (25 by default), rewrites the timing line, drops the numbering, and keeps your multi-line text. Pick the frame rate that matches your project and export.

• Frame timecodes: HH:MM:SS,mmm becomes HH:MM:SS:FF.
• FPS choice: 23.976, 24, 25, 29.97 and others.
• Separator remap: comma + two spaces, no arrows.
• Numbering removed: STL has no cue indices.
• Multi-line safe: breaks preserved in one line.
• Private: runs in your browser.

1. Paste your SRT (sample preloaded).
2. Set the frame rate to match your project.
3. Click Convert to STL and copy or download.

Example 1 — DVD authoring. A tool only reads Spruce STL text.

Example 2 — Broadcast pipeline. Frame-accurate captions required.

Example 3 — PAL deliverable. Use 25 fps for European video.

• Correct frames: matches your FPS.
• Clean format: valid Spruce STL lines.
• No renumbering: handled automatically.
• Lossless text: wording preserved.
• Private: nothing uploaded.