By country

Japan conferences

61 events catalogued in Japan, 44 forthcoming across 2026 and 2027, 17 prior. Click any entry for the full editorial profile: speakers, sponsors, sessions, cross-event company graph.

The best Japan conferences in 2026 and 2027

Data as of October 11, 2026

10 picks from 44 upcoming Japan conferences, ranked by verified program depth: the speakers and sponsors each event publishes on its own site. How we verify.

At a glance
#ConferenceDatesWhereSpeakersSponsorsBest for
1CODE BLUE 2026November 11, 2026Tokyo, JP3792Seeing the vendor landscape
2HITEC TOKYODecember 2, 2026Tokyo, JP0101Seeing the vendor landscape
3FlutterKaigi 2026October 29, 2026Tokyo, JP2832Seeing the vendor landscape
4Tokyo Test FestNovember 12, 2026Tokyo, JP3712A deep speaker lineup
5Kaigi on Rails 2026October 16, 2026Tokyo, JP356A focused, smaller program
6RubyWorld Conference 2026December 3, 2026Matsue, JP247A focused, smaller program
7PostgreSQL Conference Japan 2026November 27, 2026東京, JP1610A focused, smaller program
817th International Conference on Power, Energy, and Electrical Engineering (CPEEE 2027)March 5, 2027Yokohama, JP167A focused, smaller program
9try! Swift TokyoMarch 2, 2027Tokyo, JP161A focused, smaller program
10Kansai Open ForumNovember 13, 2026Osaka, JP98A focused, smaller program
  1. 1
    CODE BLUE 2026November 11, 2026

    Tokyo, JP·37 voices, 92 sponsors

    Best forSeeing the vendor landscape

    37 speakers. 92 sponsors.

    Track
  2. 2
    HITEC TOKYODecember 2, 2026

    Tokyo, JP·101 sponsors

    Best forSeeing the vendor landscape

    101 sponsors.

    Track
  3. 3
    FlutterKaigi 2026October 29, 2026

    Tokyo, JP·28 voices, 32 sponsors

    Best forSeeing the vendor landscape

    28 speakers. 32 sponsors.

    Track
  4. 4
    Tokyo Test FestNovember 12, 2026

    Tokyo, JP·37 voices, 12 sponsors

    Best forA deep speaker lineup

    37 speakers. 12 sponsors.

    Track
  5. 5
    Kaigi on Rails 2026October 16, 2026

    Tokyo, JP·3 voices, 56 sponsors

    Best forA focused, smaller program

    3 speakers. 56 sponsors.

    Track
  6. 6

    Matsue, JP·2 voices, 47 sponsors

    Best forA focused, smaller program

    2 speakers. 47 sponsors.

    Track
  7. 7

    東京, JP·16 voices, 10 sponsors

    Best forA focused, smaller program

    16 speakers. 10 sponsors.

    Track
  8. 8

    Yokohama, JP·16 voices, 7 sponsors

    Best forA focused, smaller program

    16 speakers. 7 sponsors.

    Track
  9. 9
    try! Swift TokyoMarch 2, 2027

    Tokyo, JP·16 voices, 1 sponsors

    Best forA focused, smaller program

    16 speakers. 1 sponsors.

    Track
  10. 10
    Kansai Open ForumNovember 13, 2026

    Osaka, JP·9 voices, 8 sponsors

    Best forA focused, smaller program

    9 speakers. 8 sponsors.

    Track

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Forthcoming

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Questions

About Japan conferences

What are the best Japan conferences in 2026?
Ranked by how many speakers and sponsors each event lists on its own site, the top three are CODE BLUE 2026 (November 11, 2026, Tokyo, JP), HITEC TOKYO (December 2, 2026, Tokyo, JP) and FlutterKaigi 2026 (October 29, 2026, Tokyo, JP). The ranking above covers 10 events out of 44 upcoming Japan conferences we track.
Which Japan conference has the most sponsors?
HITEC TOKYO lists 101 sponsors, the most of any upcoming Japan conference we track. It runs December 2, 2026 in Tokyo, JP.
When is the next Japan conference?
CEATEC 2026 is next, on October 13, 2026 in Chiba, JP.
How is this list ranked?
By verified program depth: the number of speakers and sponsors each conference publishes on its own website, which we re-check against the source. No event pays to appear in this ranking.