Audio & video
Trimming, converting and extracting audio and video — the codec and container a player will actually accept. 22 tools, including Audio Converter, Burn subtitles into a video, Change video speed and CSV to SRT converter. All free, with no account and nothing to install.
Audio ConverterConvert between MP3, WAV, M4A, OGG and FLAC, and change the sample rate or the channels.Burn subtitles into a videoPaint an SRT or VTT track into the picture, so it plays on any player.Change video speedSpeed a video or audio file up or down, hearing the result live before anything is encoded. The pitch follows or stays natural, your choice.CSV to SRT converterRebuild a valid SRT subtitle file from a CSV of index, start, end and text. Times accept either the hh:mm:ss,mmm format or a plain number of seconds, a header row is skipped automatically, and cues are renumbered in order. Perfect for turning a translated or edited spreadsheet back into subtitles.Extract AudioPull the audio track out of a video as MP3, AAC or WAV.Merge AudioJoin several MP3, WAV, M4A, FLAC or OGG files end to end, and download the result as MP3, WAV, M4A, OGG or FLAC.Mute a videoDrop the sound track from a video without touching the picture.Normalise audio loudnessBring a track or a video to a standard loudness, measured in two passes.Resize VideoScale a video to 480p, 720p, 1080p or a custom width (H.264).Rotate a videoTurn a video by 90, 180 or 270 degrees, or flip it — see the result as it plays, then write it into the picture.SRT subtitle mergerCombine two SRT subtitle files into one, cleanly renumbered. Append mode shifts the second file to start after the first one ends, plus an optional gap — ideal for joining subtitles of two video parts. Overlay mode keeps both original timings and sorts every cue chronologically, for merging two subtitle tracks.SRT subtitle time shiftFix out-of-sync subtitles by shifting every timestamp in an SRT file by the same offset. Paste the subtitles, enter a positive offset to delay them or a negative one to move them earlier, in seconds or milliseconds, and copy or download the corrected file. Times are clamped so they never go negative.SRT to CSV converterConvert an SRT subtitle file into a spreadsheet-ready CSV with columns for index, start, end and text. Fields containing commas or line breaks are properly quoted to the CSV standard, so it opens cleanly in Excel, Sheets or Numbers for bulk editing or translation. Copy or download the file.SRT to TXT converterExtract the plain transcript from an SRT subtitle file by removing the cue numbers and timestamps. Paste the subtitles and get clean text back — one cue per block, or merged onto single lines — ready to proofread, translate or feed to another tool. Copy or download the result.SRT to VTT converterConvert subtitles between SubRip (.srt) and WebVTT (.vtt) in either direction. The tool works out which one you pasted from its header and its timestamps, rewrites the millisecond separator, adds or removes the WEBVTT header, and drops the VTT-only voice and class tags that SubRip cannot read. Copy or download the result.Trim AudioCut an audio file between a start and an end and download the clip as MP3, WAV, M4A, OGG or FLAC. MP3, WAV, M4A, FLAC, OGG, WMA, AIFF and the rest.Trim VideoPick the clip on a filmstrip and hear it before you cut. The cut itself is done without re-encoding, so quality and format are untouched.Video CompressorShrink an MP4/MOV/WebM video with H.264 and an adjustable quality.Video ConverterConvert a video between MP4, WebM, MKV, MOV, AVI, OGV or animated GIF, on your device.Extract frames from a videoPull still images out of a video — one you pick on a slider and see before extracting, a fixed number, or one every few seconds.Video to GIFTurn a short video clip (MP4, WebM, MOV) into an animated GIF.VTT to TXT converterTurn a WebVTT (.vtt) caption file into a clean plain-text transcript. It strips the WEBVTT header, cue settings, NOTE blocks and timestamps, leaving only the spoken text — one cue per block or merged onto single lines. Copy or download the result.