Trim Video

Trim Video cuts a video down to what matters. Pick a video from your phone or computer, drag the two bright handles along the filmstrip (or type exact times), play the chosen part to check it, and save it as a new file.

“Keep one part” saves a single clip from your start to your end. “Keep several parts” lets you add as many parts as you like, put them in any order with the arrow buttons, and joins them into one video. “Cut out parts” does the opposite: mark the bits you don’t want, such as a mistake in the middle of a talk, and everything else is joined back together.

For precise edits, step the preview one frame at a time with the frame buttons or the arrow keys. Your video never leaves your device: your own browser reads and cuts it.

There are two ways to cut. Fast copies the original frames into the new file without re-encoding, so the quality is identical and it takes seconds; the catch, which many tools don’t mention, is that each part can only begin on a keyframe, so it may start a moment early. Exact re-encodes the picture so every part starts and ends on the precise frame you chose.

1. Tap “Choose a video” or drop a video onto the box. MP4, MOV, WebM and MKV all work.
2. Pick what to do: “Keep one part”, “Keep several parts” or “Cut out parts”.
3. Drag the handles to a part, or type times such as 0:12.5. Use “◀ 1 frame” and “1 frame ▶” (or the arrow keys on the picture) to find the exact frame, then “Set start here” or “Set end here”.
4. For several parts, press “Add this part” for each one. Tap a part in the list to adjust it, and use the arrows to change the order.
5. Leave “Fast · no quality loss” on, or pick “Exact frame · re-encode” for frame-perfect cuts.
6. Press “Trim video”, “Join the parts” or “Cut out and join”, watch the result on the page, then press “Download video”.

• Three modes: keep one part, keep several parts joined in the order you choose, or cut parts out of the middle.
• Parts list with times and lengths, move up and down, remove, and tap-to-edit; the parts show as coloured bands on the filmstrip.
• Frame stepping: frame buttons and arrow keys move one frame at the video’s own frame rate, Shift + arrow moves 1 second.
• Exact time fields that accept seconds (75), minutes and seconds (1:15) or hundredths (1:15.25).
• Fast cut copies the original video and sound with no re-encoding, so quality is untouched.
• The orange keyframe line shows where a single fast cut will really start.
• Exact cut re-encodes to MP4 (H.264), or WebM (VP9) in browsers that can’t write MP4, and keeps the sound in step across every join.
• Progress bar with time left and a Stop button; the result plays on the page before you download it.

• Use the fast cut whenever you can. It is quicker, and a re-encode always costs a little quality.
• When cutting out a mistake, use “Exact frame”: a fast cut restarts on a keyframe, so up to a second or two of the cut part can stay in.
• Phone videos in HEVC may show still frames instead of playing outside Safari and Chrome. The cut still works.
• Want a smaller file as well? Press “Make it smaller” afterwards to carry the clip straight into Compress Video.