Clyp - Clyp is the easiest way to record, upload and share audio. No account required.
AudioPen - The easiest way to convert messy thoughts into clear text
Audio Hijack - Record any audio, with Audio Hijack!
VocalBird - Record and share audio messages within Chrome
Loopback by RogueAmoeba - Get all the power of a high-end studio mixing board, right inside your Mac!
Recordify - Quickly send audio messages to Slack!