Crypton dates Hatsune Miku's software release to 31 August 2007

The setup

On 31 August 2007, the Sapporo-based music technology company Crypton Future Media released Character Vocal Series 01: Hatsune Miku, a vocal-synthesizer software package built on Yamaha's VOCALOID engine and sold with a bundled character design. Crypton's own English information sheet, archived after the live file went offline, states the date and function plainly: a computer program that turns typed lyrics and melody into synthesized singing, developed by Crypton and released on that day. This is a software release, not a performer's debut, and the two should not be collapsed into one event.

What the documents show

Crypton's information sheet credits Yamaha's VOCALOID technology as the underlying engine and names Crypton as developer and publisher. It reports that within roughly a year of release, more than 30,000 user-made songs and videos referencing the software had appeared on video-sharing sites, framing Miku's early growth as fan-driven rather than company-driven. Crypton's current product page, describing the software as it exists as retrieved on 16 September 2026, shows the same character design still anchors a vocal-synthesizer line now several versions removed from the 2007 original. Read together, the two documents separate what is dated and fixed — the original release — from what is ongoing and versioned — the current software. Neither document is a record of a concert, a meme, or a specific VTuber's activity; those are later phenomena built on top of the software, not part of what shipped in 2007.

The craft

For a maker tracing VTubing's precedents, the useful distinction is between a licensed character design attached to a software product and a performed persona. Miku's voice is synthesized from typed input, not spoken live by anyone behind a microphone, and the character was never presented as a face-tracked or motion-captured performer. What Crypton's materials document is a tool and a design, later adopted by an enormous, largely unaffiliated fan-creator base for music and art. That fan-driven layer is well known, but it sits on top of the 2007 release, not inside it.

Keeping the creator in control

Crypton's model separates the software creator from the derivative-works creators who built the surrounding culture, a structure later VTuber agencies handle differently when they own both the character and the performance. This entry treats that difference as editorial context, not as a claim any cited document makes about VTubing specifically.

• Does your own project separate the tool from the persona the way Crypton's software and character design are separate here?
• What happens to a fan-made derivative work when the underlying software or license terms change?
• How does a synthesized voice change what performance means compared with a tracked, live one?

The 31 August 2007 release date belongs to a piece of software with a bundled character design, not to a performer. Keeping that boundary clear is what lets the rest of Hatsune Miku's long fan culture be understood as something built afterward, by many hands, rather than folded into the release itself.