JA:Main Page

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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
26–28 6月State of the Map Africa 2026Dar es Salaam, Tanzania
28 6月Mapping meetup in UppsalaUppsala, Sweden
29 6月OSM-Stammtisch HannoverHanover, Lower Saxony, Germany
29 6月Rencontre Saint-Étienne et sud LoireSaint-Étienne, Auvergne-Rhône-Alpes, France
29 6月Rhein-Neckar OSM TreffenHeidelberg, Baden-Württemberg, Germany
30 6月Webinaire en ligne - Hydrants, armoires de rue, poteaux et bâtiments de service
30 6月Braunschweiger Mappertreffen im Stratum 0 HackerspaceBrunswick, Lower Saxony, Germany
30 6月London pub meet-upCity of Westminster, England, United Kingdom
30 6月East Midlands pub meet-upDerby, England, United Kingdom
1–31 7月MapCup Asia Pacific 2026
1 7月iD Community Chat
1 7月Stuttgarter OpenStreetMap-TreffenStuttgart, Baden-Württemberg, Germany
2 7月Missing Maps mapathon Žilina #23Žilina, Slovakia
2 7月IntroLAB ✦ OpenStreetMapGhent, East Flanders, Belgium
2 7月Angers : Rencontre mensuelle OpenStreetMapAngers, Pays de la Loire, France
2 7月Rencontre mensuelle des contributeurs Paris sudMontrouge, Ile-de-France, France
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
4 7月Braunschweiger OSM-Treffen Mappingtour: Zusammen Braunschweig mappenBrunswick, Lower Saxony, Germany
4 7月OSM India - Monthly Online MapathonNew Delhi, India
7 7月London Data Week: Mapping festival with Missing Maps MapathonGreater London, England, United Kingdom
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]
8–9 7月FOSS4GNLGroningen, Groningen, Netherlands
9–11 7月FOSS4G IT & OSMit 2026Sardagna, Trento, Trentino – Alto Adige/Südtirol, Italy
11–12 7月Indoor OSM Workshop 2026Berlin, Germany
12 7月OSM Delhi Mapping Party No.30 (West Zone)Delhi, India
12 7月OSM Chennai Mapping Party – Tambaram Market
13 7月OpenStreetMap x Wikidata Taipei #90Chengnei, Taipei, Taiwan
14 7月Hamburger MappertreffenHamburg, Germany
14 7月Münchner OSM-TreffenMunich, Bavaria, 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
28 7月OSM-Verkehrswende #77Berlin, Germany
29 7月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
1 8月OSM India - Monthly Online MapathonNew Delhi, India
4 8月OSM-TreffpunktSalzburg, Salzburg, Austria
4 8月Missing Maps London Mapathon (with Training) Beginner Friendly (Online) [eng]
6 8月Rencontre mensuelle des contributeurs Paris sudMontrouge, Ile-de-France, France
9 8月OSMmapperCPHCopenhagen, Capital Region of Denmark, Denmark
9 8月OSM Delhi Mapping Party No.31 (North Zone)New Delhi, India
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
12 8月Münchner OSM-TreffenMunich, Bavaria, Germany
15–16 8月OSM auf der Maker Faire Hannover 2026Hanover, Lower Saxony, Germany
16 8月Kartenwerkstatt OschatzOschatz, Saxony, Germany
18 8月3. OSM Stammtisch MagdeburgMagdeburg, Saxony-Anhalt, Germany
18 8月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
18 8月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
18 8月203. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
18 8月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
21 8月Potsdamer MappertreffenPotsdam, Brandenburg, Germany
25 8月East Midlands pub meet-upDerby, England, United Kingdom
26 8月79. Wiener OSM-StammtischVienna, Austria
26 8月Würzburger OSM-TreffenWürzburg, Bavaria, Germany
26 8月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
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]
2 9月OSM Indoor Meetup
5 9月OSM India - Monthly Online MapathonNew Delhi, India
7 9月OpenStreetMap x Wikidata Taipei #92Chengnei, Taipei, Taiwan
8 9月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
10 9月Münchner OSM-TreffenMunich, Bavaria, Germany
13 9月OSM Delhi Mapping Party No.32 (Outside Delhi)New Delhi, India
15 9月Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng]
15 9月22. Österreichischer OSM-Stammtisch (online)Stainach-Pürgg, Styria, Austria
15 9月204. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
15 9月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
15 9月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
16 9月OSM Stammtisch KölnCologne, North Rhine-Westphalia, 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
3 10月OSM India - Monthly Online MapathonNew Delhi, India
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]
11 10月OSM Delhi Mapping Party No.33 (East Zone)New Delhi, India
13 10月Münchner OSM-TreffenMunich, Bavaria, Germany
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
7 11月OSM India - Monthly Online MapathonNew Delhi, India
8 11月OSM Delhi Mapping Party No.34 (South Zone)New Delhi, India
9 11月OpenStreetMap x Wikidata Taipei #94Chengnei, Taipei, Taiwan
10 11月OSM-Stammtisch Ulm/Neu-UlmNeu-Ulm, Bavaria, Germany
11 11月Münchner OSM-TreffenMunich, 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]
5 12月OSM India - Monthly Online MapathonNew Delhi, India
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
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
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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