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Audio & speech tools

A recording to edit, words to recognise and a voice to generate are different jobs. Choose the source and result you need.

Which tool fits your job?

Turn an existing recording into words

Audio to Text

Open an audio or video file. Whisper transcribes it on your device.

Dictate through your microphone

Speech to Text

Use live local dictation. This tool does not open a recording file.

Turn English words into a voice

Text to Speech

Generate local Kokoro speech, then save WAV or MP3.

Make several recordings equally loud

Audio Loudness Normaliser

Measure LUFS and true peak. This is different from removing background noise.

9 tools ready to use

Search and filter these tools

Clean and balance

Audio Loudness NormaliserMeasure LUFS and true peak, match recordings to a target, then save a batch with a before-and-after report.File batchesOpen toolLocal processingAudio Noise RemoverTake the hiss, hum, traffic and room echo off a voice recording, with a speech model that runs on your own machine.Local AIOpen toolLocal processingSilence RemoverFind speech instead of guessing at a noise level, then shorten or remove the pauses you can see.Local AIOpen toolLocal processing

Edit and convert

Audio TrimmerCut a section out of a track on a real waveform, and copy an MP3 out frame by frame instead of re-encoding it.Open toolLocal processingAudio JoinerImport sources, trim and overlap clips on a multitrack timeline, then save one MP3 or WAV. Everything runs in your browser.Open toolLocal processingAudio ConverterConvert MP3, M4A, OGG, FLAC and other audio files to WAV, MP3 or browser-supported WebM. Set the sample rate, channels, bit depth and bitrate locally.Open toolLocal processing

Speech and transcripts

Text to SpeechTurn English text into a natural AI voice on your device, then listen or download WAV or MP3.Local AINo file neededOpen toolLocal processingAudio to TextTranscribe a recording or a video into text with timestamps. Whisper runs on your device, and the file is never uploaded.Local AIOpen toolLocal processingSpeech to TextDictate into an editable transcript with a local Whisper model. Copy or download the text without uploading your voice.Local AINo file neededOpen toolLocal processing

Before you start

Speech models need a first-use download and can make recognition errors. Silence removal is intended for speech, not music. Decoded audio can use much more memory than its compressed file.

Also useful for this work

These tools have another main home, but help with a related job.

Subtitle EditorEdit SRT and VTT timings, preview styled captions and burn them into a short video. Your files stay in your browser.No file neededOpen toolLocal processingSubtitle GeneratorGenerate subtitles from a video, cut to reading rules you can see and change. Whisper runs in your browser. Save SRT or VTT.Local AIOpen toolLocal processingRemove Silence from VideoFind speech, review every proposed pause and choose a natural pace. Keep deliberate pauses, then save picture and sound together.Local AIOpen toolLocal processing

Guides for these tools

How to turn text into speechBrowser voices, local AI and hosted speech compared. Pick the right method, prepare the text and keep the audio you make.How to transcribe audio to textWord, Google Docs, cloud services and local Whisper compared, with measured speed and accuracy for two browser models.How to use speech to text privatelyLocal browser dictation, system voice typing and cloud transcription compared. See what stays on your device before you speak.Audio normalisation: LUFS, true peak and podcast targetsChoose a listening level, understand peak limits and compare browser, Audacity and FFmpeg workflows.How to join audio files without awkward transitionsChoose direct joins or crossfades, understand MP3 quality and compare browser, Audacity and FFmpeg methods.How to convert audio files: WAV, WebM and codec choicesChoose an audio format for editing or sharing. Understand WAV size, WebM Opus support and why MP3 encoding is separate.Does trimming an MP3 lose quality?Cutting an MP3 usually re-encodes it, and that costs real detail. What frame-accurate cutting is, what it cannot do, and the loss measured over ten generations.How to remove silence from audioSpeech detection, a noise threshold, Audacity and FFmpeg compared. Learn which method protects quiet words and which one belongs on music.How to remove background noise from audioThe noise gate, the spectral method and the speech model, measured on the same recording. What each one fixes, what each one damages, and which noise nothing can fix.

Better together

Small tools. A complete workflow.

Follow a route from start to finish. Open any step, or put the first two tools side by side.

A ready-made route

Finish a spoken video

Cut first, review the words, then prepare the finished video.

  1. Cut or remove pausesVideo Trimmer
  2. Generate and review captionsSubtitle Generator
  3. Make the exported video fitVideo Compressor / Converter
Steps & tips
  1. Cut or remove pauses

    Use Remove Silence from Video for speech-aware cuts. Finalise timing before captions.

    Also try: Remove Silence from Video
  2. Generate and review captions

    Check uncertain words. Save a caption file or burn captions into the final cut.

  3. Make the exported video fit

    Compress the actual video result, not its SRT subtitle file.

A ready-made route

Make a recording readable

Choose the right source, check the recognised words and edit the result.

  1. Choose your sourceAudio to Text
  2. Review and edit the wordsNotepad
  3. Check a word limitWord & Character Counter
Steps & tips
  1. Choose your source

    Open a recording. For live microphone dictation, use Speech to Text.

    Also try: Speech to Text
  2. Review and edit the words

    Move exported text through Open in. Imported text and later edits remain local.

  3. Check a word limit

    Use the edited words. A word count is an answer, not another media file.

Each tool keeps its own work on the desk. Opening a pair does not send files or start a model. A reload loses files held in memory.

All media shelves. Browse the full floi directory or choose a YouTube task.

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