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OpenStreetMapへようこそ。それは世界のために、フリーな地図データを作成・配布する事を目指したプロジェクトです。多くの人々は地図を「フリー」であると思っています。しかし実際には、地図の利用には著作権などの法的問題・技術的な制約があります。それらが、人々が創造的・生産的・革新的に地図を利用することを阻んでいるのです。そこでわたしたちは、この問題を解決するためにOpenStreetMapプロジェクトを始めました。

OpenStreetMapについて | 協力方法 | ヘルプ

OpenStreetMapを使う
フリーの地図データに協力
ソフトウェア開発
  • ソフトウェア開発でのOpenStreetMap利用方法
  • OpenStreetMapのソフトウェアに協力
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ニュース edit
2026
10月21日2026-10-21–2026-10-22 Our secondary services were temporarily down until we could patch a critical PHP security vulnerability: if you run a website, update PHP on your server now!
10月1日2026-10-01–2026-10-02 Join the 31 Day OSM Challenge this October!
9月1日2026-09-01–2026-09-02 The Wiki has been upgraded to MediaWiki 1.46.0 (LTS).
7月10日2026-07-10–2026-07-11 OpenStreetMap Foundation and European projects: an invitation to collaborate
6月30日2026-06-30–2026-07-01 State of the Map 2026: Call for Posters
3月26日2026-03-26–2026-03-27 Follow and participate in discussions more easily using the new DiscussionTools features.
2月4日2026-02-04–2026-02-05 Thumbnail images from Wikimedia Commons need to be resized in order to keep loading.
2025
12月30日2025-12-30–2025-12-31 Thank you for the 2 Bitcoin donation to OpenStreetMap!
12月14日2025-12-14–2025-12-15 Announcing the 2025 Microgrant Program Grantees
12月8日2025-12-08–2025-12-09 Results of the State of the Map 2025 Travel Grant Programme.
12月5日2025-12-05–2025-12-06 Announcement: The State of the Map 2026 conference will take place in Paris.
10月5日2025-10-05–2025-10-06 Maintenance: The OpenStreetMap.org website and our mapping API will be read-only for server maintenance on the 5 October 2025 between 9:00 and 12:00 (UTC/GMT). Further details will be posted on community.osm.org and Mastodon.
10月3日2025-10-03–2025-10-04 The OSM Foundation at State of the Map Latin America 2025.
9月24日2025-09-24–2025-09-25 Meet Pablo Brasero Moreno, the OSM Foundation's new Core Software Engineer!
9月20日2025-09-20–2025-09-21 Voting for the OpenStreetMap Awards is open now and closes Sept. 30! There are seven categories and the winners will be announced at State of the Map 2025 in Manila.
古いニュース...
See also Recently approved tags · ブログOpenStreetMap · 週刊OSM · メディア上のOpenStreetMap
Upcoming events (add) – 関連情報: Past Events Event archive 2004-2020
9 11月CartONG : Mapathons en ligne 2026-2027
9 11月OpenStreetMap x Wikidata Taipei #94Chengnei, Taipei, Taiwan
10 11月OSM Stammtisch MagdeburgMagdeburg, Saxony-Anhalt, Germany
10 11月OSM Utah Monthly Map NightSalt Lake City, Utah, United States
10 11月Hamburger MappertreffenHamburg, Germany
10 11月London pub meet-upCity of Westminster, England, United Kingdom
10 11月South Bay Map NightSan Jose, California, United States
10 11月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
11 11月iD Community Chat
11 11月192. OSM-Stammtisch ZürichZurich, Zurich, Switzerland
11 11月Münchner OSM-TreffenMunich, Bavaria, Germany
11 11月OSM US Mappy Hour: Mapping Route 66 Past & Present
12 11月Olomoucký listopadový mapathonOlomouc, Czechia
12 11月221. OSM-Stammtisch Berlin-BrandenburgBerlin, Germany
12 11月[Tours] Rencontre locale de novembre 2026Tours, Centre-Val de Loire, France
12 11月OSM-Treffen BochumBochum, North Rhine-Westphalia, Germany
14–15 11月State of the Map Kerala (SoTM Kerala)Ettumanoor, Kerala, India
14 11月OpenStreetMap Ireland AGM - 2026Dublin, Ireland
15 11月OSM Delhi Mapping Party No.34 (South Zone)New Delhi, Delhi, India
16 11月CartONG : Mapathons en ligne 2026-2027
17 11月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
17 11月Réunion du groupe local de LyonLyon, Auvergne-Rhône-Alpes, France
17 11月FOSSGIS AG OSM und OutdoorBerlin, Germany
17 11月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
17 11月206. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
17 11月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
18 11月Mott MacDonald GIS Day Mapathon [18/10/2026]Sunderland, England, United Kingdom
18 11月Pegasus Group Mapathon Charity DayManchester, England, United Kingdom
18 11月Cal Poly Humboldt GIS Day MapathonArcata, California, United States
18 11月Stammtisch KarlsruheKarlsruhe, Baden-Württemberg, Germany
19 11月Pražský GeoWeek mapathon s Lékaři bez hranicPrague, Czechia
19 11月GeoWeek Luxembourg Mapathon [FR/EN] - Hybrid
19 11月Meetup in GentGhent, East Flanders, Belgium
20 11月OSMF Engineering Working Group meeting
20 11月Friends of MSF Leicester MapathonLeicester, England, United Kingdom
21 11月Atelier OpenStreetMap MetzMetz, Grand Est, France
21 11月OSM Suomi 2026Espoo, Uusimaa, Finland
22 11月1. OSM Stammtisch FuldaFulda, Hesse, Germany
23 11月CartONG : Mapathons en ligne 2026-2027
23 11月Mapwyr Cymru: Mapathon Gogledd Cymru #2 🏴󠁧󠁢󠁷󠁬󠁳󠁿Llanfairfechan, Wales, United Kingdom
23 11月Listopadový brněnský Missing Maps Mapathon na Ústavu botaniky a zoologieBrno, South Moravian Region, Czechia
23 11月Bremer MappertreffenBremen, Bremen, Germany
24 11月Pravidelný Missing Maps CZ-SK online Mapathon
24 11月East Midlands pub meet-upDerby, England, United Kingdom
24 11月South Bay Map NightSan Jose, California, United States
24 11月OSM-Verkehrswende #80Berlin, Germany
25 11月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
25 11月Würzburger OSM-TreffenWürzburg, Bavaria, Germany
25 11月Rhein-Neckar OSM TreffenMannheim, Baden-Württemberg, Germany
25 11月OSM-Treffen Freiburg/Brsg.Freiburg im Breisgau, Baden-Württemberg, Germany
30 11月CartONG : Mapathons en ligne 2026-2027
1 12月OSM-TreffpunktSalzburg, Salzburg, Austria
1 12月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
2 12月Maptime Amsterdam: Map & MeetAmsterdam, North Holland, Netherlands
2 12月StammtischHanover, Lower Saxony, Germany
2 12月Stuttgarter OpenStreetMap-TreffenStuttgart, Baden-Württemberg, Germany
3 12月Angers : Rencontre mensuelle OpenStreetMapAngers, Pays de la Loire, France
3 12月Rencontre mensuelle des contributeurs Paris sudMontrouge, Ile-de-France, France
5 12月OpenStreetMap Térképész-workshopBudapest, Hungary
5 12月OSM India - Monthly Online MapathonNew Delhi, India
7 12月OpenStreetMap x Wikidata Taipei #95Chengnei, Taipei, Taiwan
8 12月South Bay Map NightSan Jose, California, United States
8 12月Hamburger MappertreffenHamburg, Germany
8 12月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
9 12月23. Österreichischer OSM-Stammtisch (online)Stainach-Pürgg, Styria, Austria
10 12月OSM-Treffen BochumBochum, North Rhine-Westphalia, Germany
10 12月Münchner OSM-TreffenMunich, Bavaria, Germany
11 12月193. OSM-Stammtisch ZürichZurich, Zurich, Switzerland
13 12月OSMmapperCPHCopenhagen, Capital Region of Denmark, Denmark
13 12月OSM Delhi Mapping Party No.35 (Outside Delhi)New Delhi, India
13 12月Essen OSM-TreffenEssen, North Rhine-Westphalia, Germany
14 12月CartONG : Mapathons en ligne 2026-2027
15 12月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
15 12月Réunion du groupe local de LyonLyon, Auvergne-Rhône-Alpes, France
15 12月East Midlands pub meet-upDerby, England, United Kingdom
15 12月207. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
15 12月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
15 12月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
18 12月Potsdamer MappertreffenPotsdam, Brandenburg, Germany
18 12月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
21 12月CartONG : Mapathons en ligne 2026-2027
22 12月South Bay Map NightSan Jose, California, United States
5 1月OSM-Community-Treffen MünsterMünster, North Rhine-Westphalia, Germany
5 1月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
11 1月CartONG : Mapathons en ligne 2026-2027
11 1月OpenStreetMap x Wikidata Taipei #96Chengnei, Taipei, Taiwan
12 1月Hamburger MappertreffenHamburg, Germany
13 1月Stuttgarter OpenStreetMap-TreffenStuttgart, Baden-Württemberg, Germany
18 1月CartONG : Mapathons en ligne 2026-2027
19 1月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
25 1月CartONG : Mapathons en ligne 2026-2027
25 1月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
26 1月OSM-Verkehrswende #81Berlin, Germany
29–30 1月Mapping USA 2027
1 2月CartONG : Mapathons en ligne 2026-2027
2 2月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
8 2月CartONG : Mapathons en ligne 2026-2027
9 2月Hamburger MappertreffenHamburg, Germany
13–14 2月Karlsruhe Hack Weekend February 2027Karlsruhe, Baden-Württemberg, Germany
15 2月CartONG : Mapathons en ligne 2026-2027
15 2月OpenStreetMap x Wikidata Taipei #97Chengnei, Taipei, Taiwan
16 2月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
22 2月CartONG : Mapathons en ligne 2026-2027
1 3月CartONG : Mapathons en ligne 2026-2027
2 3月OSM-Community-Treffen MünsterMünster, North Rhine-Westphalia, Germany
2 3月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
6–7 3月FOSSGIS 2027: Mapping-PartyHeidelberg, Baden-Württemberg, Germany
8 3月CartONG : Mapathons en ligne 2026-2027
8 3月OpenStreetMap x Wikidata Taipei #98Chengnei, Taipei, Taiwan
9–12 3月FOSSGIS 2027Heidelberg, Baden-Württemberg, Germany
13 3月FOSSGIS 2027: OSM-SamstagHeidelberg, Baden-Württemberg, Germany
15 3月CartONG : Mapathons en ligne 2026-2027
16 3月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
22 3月CartONG : Mapathons en ligne 2026-2027
29 3月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
6 4月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
12 4月CartONG : Mapathons en ligne 2026-2027
12 4月OpenStreetMap x Wikidata Taipei #99Chengnei, Taipei, Taiwan
16–17 4月Q2 DataRide 2027Mannheim, Baden-Württemberg, Germany
19 4月CartONG : Mapathons en ligne 2026-2027
20 4月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
26 4月CartONG : Mapathons en ligne 2026-2027
3 5月CartONG : Mapathons en ligne 2026-2027
4 5月OSM-Community-Treffen MünsterMünster, North Rhine-Westphalia, Germany
4 5月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
10 5月CartONG : Mapathons en ligne 2026-2027
10 5月OpenStreetMap x Wikidata Taipei #100Chengnei, Taipei, Taiwan
18 5月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
24 5月CartONG : Mapathons en ligne 2026-2027
31 5月CartONG : Mapathons en ligne 2026-2027
31 5月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
1 6月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
14 6月CartONG : Mapathons en ligne 2026-2027
14 6月OpenStreetMap x Wikidata Taipei #101Chengnei, Taipei, Taiwan
15 6月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
21 6月CartONG : Mapathons en ligne 2026-2027
28 6月CartONG : Mapathons en ligne 2026-2027
6 7月OSM-Community-Treffen MünsterMünster, North Rhine-Westphalia, Germany
6 7月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
12 7月OpenStreetMap x Wikidata Taipei #102Chengnei, Taipei, Taiwan
20 7月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
26 7月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
3 8月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
9 8月OpenStreetMap x Wikidata Taipei #103Chengnei, Taipei, Taiwan
17 8月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
6 9月OpenStreetMap x Wikidata Taipei #104Chengnei, Taipei, Taiwan
7 9月OSM-Community-Treffen MünsterMünster, North Rhine-Westphalia, Germany
7 9月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
21 9月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
27 9月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
4 10月OpenStreetMap x Wikidata Taipei #105Chengnei, Taipei, Taiwan
5 10月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
19 10月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
2 11月OSM-Community-Treffen MünsterMünster, North Rhine-Westphalia, Germany
2 11月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
8 11月OpenStreetMap x Wikidata Taipei #106Chengnei, Taipei, Taiwan
16 11月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
29 11月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
6 12月OpenStreetMap x Wikidata Taipei #107Chengnei, Taipei, Taiwan
7 12月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
21 12月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
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