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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
作業する方を募集中 ±
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.
9月6日2025-09-06–2025-09-07 OSM Foundation board election: Voting is open until 13 September 2025 at 1600 UTC.
9月2日2025-09-02–2025-09-03 Read about the OSM Foundation's participation in the United Nations' Open Source Week, attended by Minh Nguyễn and Sarah Hoffman.
8月16日2025-08-16–2025-08-17 The Call for posters for the State of the Map 2025 conference is open! Submit yours by September 15.
8月1日2025-08-01–2025-08-02 Apply to be the OpenStreetMap Core Software Engineer
7月22日2025-07-22–2025-07-23 Vector Tiles are deployed on OpenStreetMap.org
7月20日2025-07-20–2025-07-21 The Call for Venues for the 2026 State of the Map conference is now open! Can your community host this great event? Bid submissions are due August 31.
7月16日2025-07-16–2025-07-17 The State of the Map 2025 conference programme was published.
7月14日2025-07-14–2025-07-15 Have a bold, brilliant idea that could improve the OpenStreetMap ecosystem? Then we’ve got good news for you: the OpenStreetMap Foundation is thrilled to launch the 2025 edition of our Engineering Microgrants program! The deadline for submissions was extended to July 31.
7月11日2025-07-11–2025-07-12 There was a fix to openstreetmap-website security, if you are a developer using this, some action may be required.
7月1日2025-07-01–2025-07-02 Nominations for OpenStreetMap Awards 2025 are open until 23 July 2025.
6月18日2025-06-18–2025-06-19 The call for State of the Map 2026 venues is open until August 31.
6月15日2025-06-15–2025-06-16 Nominate yourself until July 5 to be an OSM Foundation board candidate. Or submit questions to OSM Foundation board candidates (until July 12).
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
4 4月OSM India - Monthly Online MapathonNew Delhi, India
4 4月A Synesthete's Atlas: Cartographic Improvisations between Eric Theise, Jeffrey Gordon Evans, Hannah Joyce, and Steev HiseTucson, Arizona, United States
5 4月OSM Lucknow Mapping Party No.3Lucknow, Uttar Pradesh, India
7 4月Mapatón humanitarioZaragoza, Aragon, Spain
7 4月OSM-TreffpunktSalzburg, Salzburg, Austria
7 4月Missing Maps London: (Online) Mapathon [eng]
7 4月Easter 2026 Map n ChatDublin, Ireland
8 4月iD Community Chat
8 4月Essen OSM-TreffenEssen, North Rhine-Westphalia, Germany
9 4月A Synesthete's Atlas: Cartographic Improvisations between Eric Theise, Kenneth Cornell, and Clifford GrindstaffAlbuquerque, New Mexico, United States
10 4月214. OSM-Stammtisch Berlin-BrandenburgBerlin, Germany
10 4月186. OSM-Stammtisch ZürichZurich, Zurich, Switzerland
10 4月MSF-CARTONG: Nuit de la GéographieParis, Ile-de-France, France
11–12 4月OSM Hackweekend Berlin-Brandenburg 04/2026Berlin, Germany
11 4月Braunschweiger Mappertreffen im Stratum 0 HackerspaceBrunswick, Lower Saxony, Germany
12 4月Social Mapping Sunday: Armadale Train StationArmadale, Western Australia, Australia
12 4月Editathon e mapathon alla Milano Marathon 2026Milan, Lombardy, Italy
12 4月Camera's in kaart brengenAntwerp, Antwerp, Belgium
12 4月OSMmapperCPHCopenhagen, Capital Region of Denmark, Denmark
12 4月OSM Delhi Mapping Party No.28 (Meerut)Meerut, Uttar Pradesh, India
13 4月Missing Maps : Mapathon en ligne - CartONG [fr]
13 4月OpenStreetMap x Wikidata Taipei #87Chengnei, Taipei, Taiwan
14 4月Münchner OSM-TreffenMunich, Bavaria, Germany
15 4月Cartopartie à Oloron-Sainte-Marie - Projet SYSTOUROloron-Sainte-Marie, Nouvelle-Aquitaine, France
15 4月Une cartopartie dédiée à la mobilité durable dans les Montagnes BéarnaisesOloron-Sainte-Marie, Nouvelle-Aquitaine, France
15 4月Rencontre des contributeurs de Vienne (38)Vienne, Auvergne-Rhône-Alpes, France
15 4月Online Mapathon von ÄRZTE OHNE GRENZEN
15 4月Stammtisch KarlsruheKarlsruhe, Baden-Württemberg, Germany
16 4月OSM-Treffen Freiburg/Brsg.Freiburg im Breisgau, Baden-Württemberg, Germany
18 4月Mapping Day ad EmpoliAvane, Empoli, Tuscany, Italy
18 4月OSM-TR Meet-Up - OSM League Pit-StopKadıköy, Turkey
19 4月Mapping Party @ ChennaiChennai, Tamil Nadu, India
21 4月Missing Maps London: (Online) Mid-Month Mapathon [eng]
21 4月Réunion du groupe local de LyonLyon, Auvergne-Rhône-Alpes, France
21 4月East Midlands pub meet-upDerby, England, United Kingdom
21 4月199. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
21 4月London pub meet-upCity of London, England, United Kingdom
21 4月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
21 4月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
23 4月Capital One TPM Summit Global MapathonRichmond, Virginia, United States
23 4月Missing Maps mapathon Bratislava #13Bratislava, Region of Bratislava, Slovakia
23 4月Modifichiamo Wiki e OSM insieme!Catania, Sicily, Italy
24 4月18. Mapathon & Mapping Party Rapperswil 2026Rapperswil, Rapperswil-Jona, St. Gallen, Switzerland
25 4月OSM Mumbai Mapping Party No.9 (Central Line)Mumbai, Maharashtra, India
27 4月Dubnový Missing Maps mapathon na Ústavu botaniky a zoologieBrno, South Moravian Region, Czechia
27 4月Missing Maps : Mapathon en ligne - CartONG [fr]
28 4月Kieler Mapper*innentreffenKiel, Schleswig-Holstein, Germany
28 4月78. Wiener OSM-StammtischVienna, Austria
28 4月OSM-Verkehrswende #72Berlin, Germany
29 4月OSM-Stammtisch HannoverHanover, Lower Saxony, Germany
29 4月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
30 4月–3 5月FOSSGIS-OSM-Communitytreffen im LinuxhotelEssen, North Rhine-Westphalia, Germany
1 5月MA1PINGStuttgart, Baden-Württemberg, Germany
2 5月Braunschweiger Mappertreffen im Stratum 0 HackerspaceBrunswick, Lower Saxony, Germany
3 5月OSM India - Monthly Online MapathonNew Delhi, India
5 5月OSM-TreffpunktSalzburg, Salzburg, Austria
5 5月Missing Maps London: (Online) Mapathon [eng]
8 5月SOSM Association Annual MeetingBergdietikon, Aargau, Switzerland
10 5月OSMmapperCPHCopenhagen, Capital Region of Denmark, Denmark
10 5月OSM Delhi Mapping Party No.29 (South Zone)Delhi, India
11 5月Missing Maps : Mapathon en ligne - CartONG [fr]
11 5月OpenStreetMap x Wikidata Taipei #88Chengnei, Taipei, Taiwan
13 5月Münchner OSM-TreffenMunich, Bavaria, Germany
16 5月OSM Mumbai Mapping Party No.10 (Trans-Harbour Line - North)Navi Mumbai, Maharashtra, India
19 5月Missing Maps London: (Online) Mid-Month Mapathon [eng]
19 5月Réunion du groupe local de LyonLyon, Auvergne-Rhône-Alpes, France
19 5月200. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
19 5月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
19 5月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
25 5月Missing Maps : Mapathon en ligne - CartONG [fr]
27 5月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
2 6月OSM-TreffpunktSalzburg, Salzburg, Austria
2 6月Missing Maps London: (Online) Mapathon [eng]
6 6月Braunschweiger Mappertreffen im Stratum 0 HackerspaceBrunswick, Lower Saxony, Germany
7 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
11–13 6月State of the Map US 2026Madison, Wisconsin, United States
11 6月Münchner OSM-TreffenMunich, Bavaria, Germany
14 6月OSM Delhi Mapping Party No.30 (West Zone)Delhi, India
16 6月Missing Maps London: (Online) Mid-Month Mapathon [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Missing Maps Mapathon in StuttgartStuttgart, Baden-Württemberg, Germany
20 6月OSM Mumbai Mapping Party No.11 (Trans-Harbour Line - South)Maharashtra, India
22 6月Missing Maps : Mapathon en ligne - CartONG [fr]
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
7 7月OSM-TreffpunktSalzburg, Salzburg, Austria
7 7月Missing Maps London: (Online) Mapathon [eng]
13 7月OpenStreetMap x Wikidata Taipei #90Chengnei, Taipei, Taiwan
15 7月Online Mapathon von ÄRZTE OHNE GRENZEN
21 7月Missing Maps London: (Online) Mid-Month Mapathon [eng]
21 7月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
21 7月202. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, 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: (Online) Mapathon [eng]
10 8月OpenStreetMap x Wikidata Taipei #91Chengnei, Taipei, Taiwan
18 8月Missing Maps London: (Online) Mid-Month Mapathon [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
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
1 9月OSM-TreffpunktSalzburg, Salzburg, Austria
1 9月Missing Maps London: (Online) Mapathon [eng]
7 9月OpenStreetMap x Wikidata Taipei #92Chengnei, Taipei, Taiwan
15 9月Missing Maps London: (Online) Mid-Month Mapathon [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
25 9月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, 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: (Online) Mapathon [eng]
20 10月Missing Maps London: (Online) Mid-Month Mapathon [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
27–29 10月State of the Map LATAM 2026Mexico 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: (Online) Mapathon [eng]
7 11月Maker Days SalzburgSalzburg, Salzburg, Austria
9 11月OpenStreetMap x Wikidata Taipei #94Chengnei, Taipei, Taiwan
17 11月Missing Maps London: (Online) Mid-Month Mapathon [eng]
17 11月206. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
17 11月OSM-Stammtisch ChemnitzChemnitz, Saxony, 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: (Online) Mapathon [eng]
7 12月OpenStreetMap x Wikidata Taipei #95Chengnei, Taipei, Taiwan
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: (Online) Mid-Month Mapathon [eng]
15 12月OSM-Stammtisch ChemnitzChemnitz, Saxony, Germany
15 12月207. OSM-Stammtisch BonnBonn, North Rhine-Westphalia, Germany
15 12月Lüneburger Mappertreffen (online)Lüneburg, Lower Saxony, Germany
18 12月Düsseldorfer OpenStreetMap-Treffen (online)Dusseldorf, North Rhine-Westphalia, Germany
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