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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
19 10月Maptime GhentGhent, East Flanders, Belgium
20 10月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
20 10月Réunion du groupe local de LyonLyon, Auvergne-Rhône-Alpes, France
20 10月205. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
20 10月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
20 10月Edinburgh SocialCity of Edinburgh, Scotland, United Kingdom
20 10月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
21 10月Réunion du groupe local de VienneVienne, Auvergne-Rhône-Alpes, France
21 10月Formazione Wikimedia Italia - OpenStreetMap: modifica tramite sito e tramite appMilan, Lombardy, Italy
21 10月Stammtisch KarlsruheKarlsruhe, Baden-Württemberg, Germany
21 10月OSM US Mappy Hour: Mapping Accessible Trails
21 10月[Online] OSM Greece - Διαδικτυακή συνάντηση της ελληνικής κοινότηταςGreece
22 10月Training on OpenStreetMap (OSM Pakistan)Chak Shahzad, Islamabad Capital Territory, Pakistan
22 10月EarthPV: Mapping PhotovoltaicsBerlin, Germany
22 10月Missing Maps mapathon Bratislava #14Bratislava, Region of Bratislava, Slovakia
24–25 10月Kochi Mapping Party 2026Ernakulam, Kerala, India
24 10月Linux Day 2026 a BolognaSan Nicolò di Villola, Bologna, Emilia-Romagna, Italy
24 10月Linux Day 2026 ParmaParma, Emilia-Romagna, Italy
24 10月Cartopartie à OrxOrx, Nouvelle-Aquitaine, France
24–25 10月OSM Hackweekend Berlin-Brandenburg 10/2026Berlin, Germany
25 10月Mapping meetup in UppsalaUppsala, Sweden
25 10月OSM Delhi NCR Mapping Party No.33 (Noida)Hazipur, Noida, Uttar Pradesh, India
26 10月a11y-Score: ein OSM-Barrierefreiheitswerkzeug
26 10月CartONG : Mapathons en ligne 2026-2027
26 10月Formazione Wikimedia Italia - OpenStreetMap: tasking managerMilan, Lombardy, Italy
26 10月Bremer MappertreffenBremen, Bremen, Germany
26 10月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
27–29 10月State of the Map Latam 2026Mexico City, Mexico City, Mexico
27 10月Pravidelný Missing Maps CZ-SK online Mapathon
27 10月80. Wiener OSM-StammtischVienna, Austria
27 10月East Midlands pub meet-upDerby, England, United Kingdom
28 10月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
28 10月Würzburger OSM-TreffenWürzburg, Bavaria, Germany
30 10月20. Mapathon & Mapping Party Rapperswil 2026Rapperswil, Rapperswil-Jona, St. Gallen, Switzerland
31 10月Linux Day 2026 in PesaroPesaro, Marche, Italy
31 10月Linux Day PesaroPesaro, Marche, Italy
1 11月OSM India - Monthly Online MapathonNew Delhi, Delhi, India
2 11月StammtischHanover, Lower Saxony, Germany
3 11月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
3 11月Berner OpenStreetMap-ZnachtBern, Bern, Switzerland
4 11月Stuttgarter OpenStreetMap-TreffenStuttgart, Baden-Württemberg, Germany
5 11月Rencontre mensuelle des contributeurs Paris sudMontrouge, Ile-de-France, France
6 11月Angers Rencontre mensuelle OpenStreetMapAngers, Pays de la Loire, France
7 11月Maker Days SalzburgSalzburg, Salzburg, Austria
7 11月Mapathon @ AngeraAngera, Lombardy, Italy
8 11月OSMmapperCPHCopenhagen, Capital Region of Denmark, Denmark
8 11月OSM Delhi Mapping Party No.34 (South Zone)New Delhi, India
9 11月CartONG : Mapathons en ligne 2026-2027
9 11月OpenStreetMap x Wikidata Taipei #94Chengnei, Taipei, Taiwan
10 11月OSM Utah Monthly Map NightSalt Lake City, Utah, United States
10 11月Hamburger MappertreffenHamburg, Germany
10 11月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
11 11月iD Community Chat
11 11月Münchner OSM-TreffenMunich, Bavaria, Germany
14–15 11月State of the Map Kerala (SoTM Kerala)Ettumanoor, Kerala, India
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
19 11月GeoWeek Luxembourg Mapathon [FR/EN] - Hybrid
19 11月Meetup in GentGhent, East Flanders, Belgium
21 11月Atelier OpenStreetMap MetzMetz, Grand Est, France
22 11月1. OSM Stammtisch FuldaFulda, Hesse, Germany
23 11月CartONG : Mapathons en ligne 2026-2027
24 11月Pravidelný Missing Maps CZ-SK online Mapathon
24 11月OSM-Verkehrswende #80Berlin, Germany
25 11月Rhein-Neckar OSM TreffenMannheim, Baden-Württemberg, Germany
25 11月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
25 11月OSM-Treffen Freiburg/Brsg.Freiburg im Breisgau, Baden-Württemberg, Germany
1 12月OSM-TreffpunktSalzburg, Salzburg, Austria
1 12月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
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OSM India - Monthly Online MapathonNew Delhi, India
7 12月OpenStreetMap x Wikidata Taipei #95Chengnei, Taipei, Taiwan
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Münchner OSM-TreffenMunich, Bavaria, Germany
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Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
11 1月CartONG : Mapathons en ligne 2026-2027
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
8 2月CartONG : Mapathons en ligne 2026-2027
22 2月CartONG : Mapathons en ligne 2026-2027
8 3月CartONG : Mapathons en ligne 2026-2027
22 3月CartONG : Mapathons en ligne 2026-2027
29 3月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
12 4月CartONG : Mapathons en ligne 2026-2027
26 4月CartONG : Mapathons en ligne 2026-2027
10 5月CartONG : Mapathons en ligne 2026-2027
24 5月CartONG : Mapathons en ligne 2026-2027
31 5月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
14 6月CartONG : Mapathons en ligne 2026-2027
28 6月CartONG : Mapathons en ligne 2026-2027
26 7月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
27 9月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
29 11月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
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