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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
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
26 5月Mappy Hour OSM EspañaMadrid, Community of Madrid, Spain
26 5月Réunion du groupe local de LyonLyon, Auvergne-Rhône-Alpes, France
26 5月OSM-Verkehrswende #75Berlin, Germany
27 5月Würzburger OSM-TreffenWürzburg, Bavaria, Germany
27 5月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
28 5月OSM-Stammtisch HannoverHanover, Lower Saxony, Germany
29 5月OSMF Engineering Working Group meeting
30 5月Braunschweiger OSM-Treffen Mappingtour: Zusammen Bad Harzburg mappenBad Harzburg (Innenstadt), Lower Saxony, Germany
31 5月Mapping Party @ CoimbatoreCoimbatore, Tamil Nadu, India
2 6月Cartopartie BayonneBayonne, Nouvelle-Aquitaine, France
2 6月Braunschweiger Mappertreffen im Stratum 0 HackerspaceBrunswick, Lower Saxony, Germany
2 6月OSM-TreffpunktSalzburg, Salzburg, Austria
2 6月Mappy Hour OSM EspañaMadrid, Community of Madrid, Spain
2 6月Missing Maps London Mapathon (with Training) Beginner Friendly (Online) [eng]
3 6月Kvartální OSM pivoBrno, South Moravian Region, Czechia
3 6月OSM Indoor Meetup
3 6月Stuttgarter OpenStreetMap-TreffenStuttgart, Baden-Württemberg, Germany
4 6月State of the Map Baltics 2026Riga, Latvia
4 6月Angers : Rencontre mensuelle OpenStreetMapAngers, Pays de la Loire, France
5 6月OSM Syria Solidarity Mapathon #6Damascus, Damascus Governorate, Syria
5 6月🇧🇷 Capacitação OSM 2026 - IVIDES DATA ® - Plugins QGIS para OSMRio de Janeiro, Rio de Janeiro, Brazil
6 6月OSM India - Monthly Online MapathonNew Delhi, India
8 6月Missing Maps : Mapathon en ligne - CartONG [fr]
8 6月OpenStreetMap x Wikidata Taipei #89Chengnei, Taipei, Taiwan
9 6月Mappy Hour OSM EspañaMadrid, Community of Madrid, Spain
9 6月Hamburger MappertreffenHamburg, Germany
9 6月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
11–13 6月State of the Map US 2026Madison, Wisconsin, United States
11 6月OSM-Treffen BochumBochum, North Rhine-Westphalia, Germany
11 6月Münchner OSM-TreffenMunich, Bavaria, Germany
14 6月OSMmapperCPHCopenhagen, Capital Region of Denmark, Denmark
14 6月OSM Delhi Mapping Party No.30 (West Zone)Delhi, India
16 6月Mappy Hour OSM EspañaMadrid, Community of Madrid, Spain
16 6月Missing Maps London Mid-Month (Without Training) Advanced Mappers (Online) [eng]
16 6月Réunion du groupe local de LyonLyon, Auvergne-Rhône-Alpes, France
16 6月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
16 6月201. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
16 6月1er Apéro du groupe local de StrasbourgStrasbourg, Grand Est, France
16 6月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
17 6月21. Österreichischer OSM-Stammtisch (online)Stainach-Pürgg, Styria, Austria
18 6月Essen OSM-TreffenEssen, North Rhine-Westphalia, Germany
19 6月ReMapping Syria 2025: Humanitarian Mapping & Community Collaboration WebinarDamascus, Damascus Governorate, Syria
19 6月🇧🇷 Capacitação OSM 2026 - IVIDES DATA ® - Formulários Web com KoboToolboxRio de Janeiro, Rio de Janeiro, Brazil
19 6月Missing Maps Mapathon in StuttgartStuttgart, Baden-Württemberg, Germany
20 6月Atelier du groupe local de Metz - Partez en voyage avec OpenStreetMapMetz, Grand Est, France
20 6月OSM Mumbai Mapping Party No.11 (Trans-Harbour Line - South)Maharashtra, India
21 6月Sommermapping 2026Fulda, Hesse, Germany
22 6月Missing Maps : Mapathon en ligne - CartONG [fr]
22 6月Bremer MappertreffenBremen, Bremen, Germany
23 6月2. OSM Stammtisch MagdeburgMagdeburg, Saxony-Anhalt, Germany
23 6月OSM-Verkehrswende #76Berlin, Germany
25 6月OSM-Treffen Freiburg im BreisgauFreiburg im Breisgau, Baden-Württemberg, Germany
26–28 6月State of the Map Africa 2025Dar es-Salaam, Tanzania
26 6月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
27 6月Mapathon @ Casorate SempioneCasorate Sempione, Lombardy, Italy
29 6月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
30 6月East Midlands pub meet-upDerby, England, United Kingdom
3–4 7月State of the Map Colombia (SotMCol) 2026Bogota, Bogota, Capital District, Colombia
3 7月🇧🇷 Capacitação OSM 2026 - IVIDES DATA ® - Mapas Web com uMapRio de Janeiro, Rio de Janeiro, Brazil
7 7月OSM-TreffpunktSalzburg, Salzburg, Austria
7 7月OSM-Znacht in BernBern, Bern, Switzerland
7 7月Missing Maps London Mapathon (with Training) Beginner Friendly (Online) [eng]
13 7月OpenStreetMap x Wikidata Taipei #90Chengnei, Taipei, Taiwan
14 7月Hamburger MappertreffenHamburg, Germany
14 7月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
15 7月Online Mapathon von ÄRZTE OHNE GRENZEN
21 7月Missing Maps London Mid-Month (Without Training) Advanced Mappers (Online) [eng]
21 7月East Midlands pub meet-upDerby, England, United Kingdom
21 7月202. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
21 7月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
21 7月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
29 7月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
4 8月OSM-TreffpunktSalzburg, Salzburg, Austria
4 8月Missing Maps London Mapathon (with Training) Beginner Friendly (Online) [eng]
10 8月OpenStreetMap x Wikidata Taipei #91Chengnei, Taipei, Taiwan
11 8月Hamburger MappertreffenHamburg, Germany
11 8月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
16 8月Kartenwerkstatt OschatzOschatz, Saxony, Germany
18 8月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
18 8月203. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
18 8月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
18 8月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
25 8月East Midlands pub meet-upDerby, England, United Kingdom
26 8月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
26 8月79. Wiener OSM-StammtischVienna, Austria
27 8月OpenStreetMap West Bengal Mapping Party + AnkushTheHero Day
28–30 8月State of the Map 2026Champs-sur-Marne, Ile-de-France, France
28 8月Essen OSM-TreffenEssen, North Rhine-Westphalia, Germany
31 8月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
1 9月OSM-TreffpunktSalzburg, Salzburg, Austria
1 9月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
7 9月OpenStreetMap x Wikidata Taipei #92Chengnei, Taipei, Taiwan
8 9月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
15 9月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
15 9月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
15 9月204. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
15 9月22. Österreichischer OSM-Stammtisch (online)Stainach-Pürgg, Styria, Austria
15 9月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
22 9月East Midlands pub meet-upDerby, England, United Kingdom
25 9月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
26–27 9月Karlsruhe Hack Weekend September 2026Karlsruhe, Baden-Württemberg, Germany
2–4 10月FOSSGIS-OSM-Communitytreffen Nr. 26 im LinuxhotelEssen, North Rhine-Westphalia, Germany
3 10月Essen OSM-TreffenEssen, North Rhine-Westphalia, Germany
5 10月OpenStreetMap x Wikidata Taipei #93Chengnei, Taipei, Taiwan
6 10月OSM-TreffpunktSalzburg, Salzburg, Austria
6 10月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
13 10月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
20 10月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
20 10月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
20 10月205. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
20 10月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
26 10月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
27–29 10月State of the Map LATAM 2026 in Mexico CityMexico City, Mexico City, Mexico
27 10月80. Wiener OSM-StammtischVienna, Austria
28 10月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
3 11月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
7 11月Maker Days SalzburgSalzburg, Salzburg, Austria
9 11月OpenStreetMap x Wikidata Taipei #94Chengnei, Taipei, Taiwan
10 11月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
17 11月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
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
25 11月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
1 12月OSM-TreffpunktSalzburg, Salzburg, Austria
1 12月Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng]
7 12月OpenStreetMap x Wikidata Taipei #95Chengnei, Taipei, Taiwan
8 12月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
9 12月23. Österreichischer OSM-Stammtisch (online)Stainach-Pürgg, Styria, Austria
13 12月Essen OSM-TreffenEssen, North Rhine-Westphalia, Germany
15 12月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
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
25 1月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
29 3月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
31 5月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
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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