ボイスメモをオンライン録音 アプリ不要

You need to record a quick voice memo and don't want to download anything. Modern browsers can record audio directly: no apps, no signup, no cloud upload. This guide explains how, and when to use a voice recorder vs a dictaphone with transcription.

When You Need to Record a Voice Memo Quickly

Capturing an idea before you forget. Dictating a draft email faster than typing. Recording a child's first words. Sending a voice message that's too long for text. All these need a recorder ready in seconds: no app launch, no project file, no setup.

Browser recording wins for spontaneous capture because nothing has to be opened or installed first.

Record Voice Online for Free

Open our free Voice Recorder. Click record, grant microphone permission, speak, click stop. The recording is immediately available to play back and download.

You can record multiple takes in one session. Each appears in a list: play, rename, download, or delete individually. All audio stays in your browser memory; nothing is uploaded to any server.

Voice Recorder vs Dictaphone: What's the Difference?

A voice recorder captures audio. A dictaphone captures audio AND converts speech to text in real time. Both work in your browser; the dictaphone adds the Web Speech API for live transcription.

Use voice recorder when you only need the audio file (sharing, archive). Use dictaphone when you also want a written transcript (notes, drafts, meeting summaries).

Recording with Auto Transcription

Our online dictaphone records audio and transcribes it live. You can see the transcript appear word by word as you speak, in 13+ languages.

Note: transcription requires Chrome or Edge (which support the Web Speech API). Firefox and Safari can record audio but won't transcribe. The transcript download is a plain .txt file you can edit anywhere.

Audio File Formats: WebM, MP3, WAV Compared

Browser recordings come out as WebM with Opus audio: modern, efficient, small files at good quality. Works in VLC, Chrome, Firefox, and most modern players.

MP3 is older but universally compatible. Convert WebM to MP3 with Audacity (free) or any online converter if you need maximum compatibility.

WAV is uncompressed and huge. Only use for professional audio work where post-processing requires lossless source.

Tips for Clear Voice Recordings

Position the mic 6-10 inches from your mouth, slightly off-axis. Direct-on positioning causes plosives (pop sounds on Ps and Bs).

Record in a quiet room with soft surfaces (carpet, curtains). Hard rooms (kitchens, bathrooms) sound echoey.

Speak at normal volume: not too quiet (forces gain boost which adds noise) and not too loud (causes clipping).

Privacy: Is Your Recording Stored?

Our voice recorder: nothing is uploaded. Recordings exist only in your browser memory and disappear when you close the tab. Download anything you want to keep.

Our dictaphone: audio stays local. The transcription step uses your browser's Web Speech API, which on Chrome/Edge sends audio to Google's speech recognition servers for processing. If transcript privacy matters, use the regular voice recorder and transcribe later with a local model.