diff --git a/l10n/cs_CZ/gpxedit.po b/l10n/cs_CZ/gpxedit.po
new file mode 100644
index 0000000..ad9c05f
--- /dev/null
+++ b/l10n/cs_CZ/gpxedit.po
@@ -0,0 +1,567 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: gpxedit\n"
+"Report-Msgid-Bugs-To: translations@owncloud.org\n"
+"POT-Creation-Date: 2017-11-10 16:14+0100\n"
+"PO-Revision-Date: 2017-11-27 17:03-0500\n"
+"Last-Translator: eneiluj <eneiluj@posteo.net>\n"
+"Language-Team: Czech\n"
+"Language: cs_CZ\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
+"X-Generator: crowdin.com\n"
+"X-Crowdin-Project: gpxedit\n"
+"X-Crowdin-Language: cs\n"
+"X-Crowdin-File: /master/l10n/templates/gpxedit.pot\n"
+
+#: app.php:42 admin.php:7
+msgid "GpxEdit"
+msgstr ""
+
+#: admin.js:15 gpxedit.js:403 gpxedit.js:1269 admin.php:27 gpxcontent.php:165
+#: gpxcontent.php:209 gpxcontent.php:255 gpxcontent.php:305
+msgid "Delete"
+msgstr ""
+
+#: filetypes.js:11
+msgid "Load in GpxEdit"
+msgstr ""
+
+#: filetypes.js:36
+msgid "Edit with GpxEdit"
+msgstr ""
+
+#: gpxedit.js:399
+msgid "Draw a track"
+msgstr ""
+
+#: gpxedit.js:400
+msgid "Add a waypoint"
+msgstr ""
+
+#: gpxedit.js:401
+msgid "Edit"
+msgstr ""
+
+#: gpxedit.js:402
+msgid "Nothing to edit"
+msgstr ""
+
+#: gpxedit.js:404
+msgid "Nothing to delete"
+msgstr ""
+
+#: gpxedit.js:405
+msgid "Validate changes"
+msgstr ""
+
+#: gpxedit.js:406
+msgid "Ok"
+msgstr ""
+
+#: gpxedit.js:407
+msgid "Discard all changes"
+msgstr ""
+
+#: gpxedit.js:408 gpxedit.js:416
+msgid "Cancel"
+msgstr ""
+
+#: gpxedit.js:409
+msgid "Drag to move elements,<br/>click to remove a point<br/>hover a middle marker and press \"Del\" to cut the line"
+msgstr ""
+
+#: gpxedit.js:410
+msgid "Click cancel to undo changes"
+msgstr ""
+
+#: gpxedit.js:411
+msgid "Click on an element to delete it"
+msgstr ""
+
+#: gpxedit.js:412
+msgid "Click map to add waypoint"
+msgstr ""
+
+#: gpxedit.js:413
+msgid "Click to start drawing track"
+msgstr ""
+
+#: gpxedit.js:414
+msgid "Click to continue drawing track"
+msgstr ""
+
+#: gpxedit.js:415
+msgid "Click last point to finish track"
+msgstr ""
+
+#: gpxedit.js:417
+msgid "Cancel drawing"
+msgstr ""
+
+#: gpxedit.js:418
+msgid "Finish"
+msgstr ""
+
+#: gpxedit.js:419
+msgid "Finish drawing"
+msgstr ""
+
+#: gpxedit.js:420
+msgid "Delete last point"
+msgstr ""
+
+#: gpxedit.js:421
+msgid "Delete last point drawn"
+msgstr ""
+
+#: gpxedit.js:486
+msgid "Track"
+msgstr ""
+
+#: gpxedit.js:491
+msgid "Route"
+msgstr ""
+
+#: gpxedit.js:496
+msgid "Waypoint"
+msgstr ""
+
+#: gpxedit.js:501
+msgid "Name"
+msgstr ""
+
+#: gpxedit.js:502
+msgid "Description"
+msgstr ""
+
+#: gpxedit.js:503
+msgid "Comment"
+msgstr ""
+
+#: gpxedit.js:505
+msgid "Lat"
+msgstr ""
+
+#: gpxedit.js:507
+msgid "Lon"
+msgstr ""
+
+#: gpxedit.js:509
+msgid "Symbol"
+msgstr ""
+
+#: gpxedit.js:512
+msgid "No symbol"
+msgstr ""
+
+#: gpxedit.js:514
+msgid "Unknown symbol"
+msgstr ""
+
+#: gpxedit.js:975
+msgid "Failed to save file"
+msgstr ""
+
+#: gpxedit.js:993
+msgid "File successfully saved as"
+msgstr ""
+
+#: gpxedit.js:1104
+msgid "Impossible to load this file. "
+msgstr ""
+
+#: gpxedit.js:1105
+msgid "Supported formats are gpx, kml, csv (unicsv) and jpg."
+msgstr ""
+
+#: gpxedit.js:1106
+msgid "Load error"
+msgstr ""
+
+#: gpxedit.js:1209
+msgid "Tile server \"{ts}\" has been deleted"
+msgstr ""
+
+#: gpxedit.js:1212 gpxedit.js:1216
+msgid "Failed to delete tile server \"{ts}\""
+msgstr ""
+
+#: gpxedit.js:1231
+msgid "Server name or server url should not be empty"
+msgstr ""
+
+#: gpxedit.js:1232 gpxedit.js:1237
+msgid "Impossible to add tile server"
+msgstr ""
+
+#: gpxedit.js:1236
+msgid "A server with this name already exists"
+msgstr ""
+
+#: gpxedit.js:1302
+msgid "Tile server \"{ts}\" has been added"
+msgstr ""
+
+#: gpxedit.js:1305 gpxedit.js:1309
+msgid "Failed to add tile server \"{ts}\""
+msgstr ""
+
+#: gpxedit.js:1381
+msgid "Failed to restore options values"
+msgstr ""
+
+#: gpxedit.js:1382 gpxedit.js:1437
+msgid "Error"
+msgstr ""
+
+#: gpxedit.js:1436
+msgid "Failed to save options values"
+msgstr ""
+
+#: gpxedit.js:1503 gpxedit.js:1510 gpxedit.js:1517
+msgid "Impossible to write file"
+msgstr ""
+
+#: gpxedit.js:1504
+msgid "write access denied"
+msgstr ""
+
+#: gpxedit.js:1511
+msgid "folder does not exist"
+msgstr ""
+
+#: gpxedit.js:1518
+msgid "folder write access denied"
+msgstr ""
+
+#: gpxedit.js:1524
+msgid "Bad file name, must end with \".gpx\""
+msgstr ""
+
+#: gpxedit.js:1636
+msgid "Load file (gpx, kml, csv, png)"
+msgstr ""
+
+#: gpxedit.js:1653
+msgid "Load folder"
+msgstr ""
+
+#: gpxedit.js:1665
+msgid "There is nothing to save"
+msgstr ""
+
+#: gpxedit.js:1670
+msgid "Where to save"
+msgstr ""
+
+#: leaflet.js:5
+msgid "left"
+msgstr ""
+
+#: leaflet.js:5
+msgid "right"
+msgstr ""
+
+#: admin.php:8
+msgid "Extra symbols"
+msgstr ""
+
+#: admin.php:9
+msgid "Those symbols will be available in GpxEdit."
+msgstr ""
+
+#: admin.php:10
+msgid "Keep in mind that only symbol names are saved in gpx files. Other programs will display default symbol if they do not know a symbol name."
+msgstr ""
+
+#: admin.php:34
+msgid "Recommended image ratio : 1:1"
+msgstr ""
+
+#: admin.php:35
+msgid "Recommended image resolution : between 24x24 and 50x50"
+msgstr ""
+
+#: admin.php:36
+msgid "Accepted image format : png"
+msgstr ""
+
+#: admin.php:38
+msgid "New symbol name"
+msgstr ""
+
+#: admin.php:42
+msgid "Upload new symbol image"
+msgstr ""
+
+#: gpxcontent.php:4
+msgid "Load and save files"
+msgstr ""
+
+#: gpxcontent.php:5 gpxcontent.php:106
+msgid "Options"
+msgstr ""
+
+#: gpxcontent.php:6 gpxcontent.php:316
+msgid "About GpxEdit"
+msgstr ""
+
+#: gpxcontent.php:24
+msgid "Load file"
+msgstr ""
+
+#: gpxcontent.php:25
+msgid "Load directory"
+msgstr ""
+
+#: gpxcontent.php:27
+msgid "all files"
+msgstr ""
+
+#: gpxcontent.php:35
+msgid "Save"
+msgstr ""
+
+#: gpxcontent.php:37
+msgid "File name"
+msgstr ""
+
+#: gpxcontent.php:40
+msgid "Metadata"
+msgstr ""
+
+#: gpxcontent.php:42
+msgid "Track name (optional)"
+msgstr ""
+
+#: gpxcontent.php:44
+msgid "Description (optional)"
+msgstr ""
+
+#: gpxcontent.php:46
+msgid "Link text (optional)"
+msgstr ""
+
+#: gpxcontent.php:48
+msgid "Link URL (optional)"
+msgstr ""
+
+#: gpxcontent.php:51
+msgid "Choose directory and save"
+msgstr ""
+
+#: gpxcontent.php:54
+msgid "Clear map"
+msgstr ""
+
+#: gpxcontent.php:65
+msgid "loading file"
+msgstr ""
+
+#: gpxcontent.php:69
+msgid "exporting file to gpx"
+msgstr ""
+
+#: gpxcontent.php:73
+msgid "saving file"
+msgstr ""
+
+#: gpxcontent.php:109
+msgid "Default symbol for waypoints when value is not set"
+msgstr ""
+
+#: gpxcontent.php:110
+msgid "Waypoint style"
+msgstr ""
+
+#: gpxcontent.php:114
+msgid "Tooltip"
+msgstr ""
+
+#: gpxcontent.php:116
+msgid "on hover"
+msgstr ""
+
+#: gpxcontent.php:117
+msgid "permanent"
+msgstr ""
+
+#: gpxcontent.php:119
+msgid "Units (needs page reload to take effect)"
+msgstr ""
+
+#: gpxcontent.php:121
+msgid "Metric"
+msgstr ""
+
+#: gpxcontent.php:122
+msgid "English"
+msgstr ""
+
+#: gpxcontent.php:123
+msgid "Nautical"
+msgstr ""
+
+#: gpxcontent.php:125 gpxcontent.php:127
+msgid "Use defined symbols instead of default symbol"
+msgstr ""
+
+#: gpxcontent.php:126
+msgid "Use defined symbols"
+msgstr ""
+
+#: gpxcontent.php:129
+msgid "Clear map before loading"
+msgstr ""
+
+#: gpxcontent.php:131
+msgid "Approximate new points elevations"
+msgstr ""
+
+#: gpxcontent.php:135
+msgid "Custom tile servers"
+msgstr ""
+
+#: gpxcontent.php:138 gpxcontent.php:178 gpxcontent.php:222 gpxcontent.php:268
+msgid "Server name"
+msgstr ""
+
+#: gpxcontent.php:139 gpxcontent.php:179 gpxcontent.php:223 gpxcontent.php:269
+msgid "For example : my custom server"
+msgstr ""
+
+#: gpxcontent.php:140 gpxcontent.php:180 gpxcontent.php:224 gpxcontent.php:270
+msgid "Server url"
+msgstr ""
+
+#: gpxcontent.php:141 gpxcontent.php:225
+msgid "For example : http://tile.server.org/cycle/{z}/{x}/{y}.png"
+msgstr ""
+
+#: gpxcontent.php:142 gpxcontent.php:182 gpxcontent.php:226 gpxcontent.php:272
+msgid "Min zoom (1-20)"
+msgstr ""
+
+#: gpxcontent.php:144 gpxcontent.php:184 gpxcontent.php:228 gpxcontent.php:274
+msgid "Max zoom (1-20)"
+msgstr ""
+
+#: gpxcontent.php:146 gpxcontent.php:190 gpxcontent.php:236 gpxcontent.php:286
+msgid "Add"
+msgstr ""
+
+#: gpxcontent.php:149
+msgid "Your tile servers"
+msgstr ""
+
+#: gpxcontent.php:175
+msgid "Custom overlay tile servers"
+msgstr ""
+
+#: gpxcontent.php:181 gpxcontent.php:271
+msgid "For example : http://overlay.server.org/cycle/{z}/{x}/{y}.png"
+msgstr ""
+
+#: gpxcontent.php:186 gpxcontent.php:276
+msgid "Transparent"
+msgstr ""
+
+#: gpxcontent.php:188 gpxcontent.php:278
+msgid "Opacity (0.0-1.0)"
+msgstr ""
+
+#: gpxcontent.php:193
+msgid "Your overlay tile servers"
+msgstr ""
+
+#: gpxcontent.php:219
+msgid "Custom WMS tile servers"
+msgstr ""
+
+#: gpxcontent.php:230 gpxcontent.php:280
+msgid "Format"
+msgstr ""
+
+#: gpxcontent.php:232 gpxcontent.php:282
+msgid "WMS version"
+msgstr ""
+
+#: gpxcontent.php:234 gpxcontent.php:284
+msgid "Layers to display"
+msgstr ""
+
+#: gpxcontent.php:239
+msgid "Your WMS tile servers"
+msgstr ""
+
+#: gpxcontent.php:265
+msgid "Custom WMS overlay servers"
+msgstr ""
+
+#: gpxcontent.php:289
+msgid "Your WMS overlay tile servers"
+msgstr ""
+
+#: gpxcontent.php:318
+msgid "Features overview"
+msgstr ""
+
+#: gpxcontent.php:320
+msgid "Draw, edition and deletion buttons are in the map's bottom-left corner."
+msgstr ""
+
+#: gpxcontent.php:322
+msgid "You can draw a line or add a marker."
+msgstr ""
+
+#: gpxcontent.php:324
+msgid "If you click on a line or a marker, a popup pops and let you set the object properties."
+msgstr ""
+
+#: gpxcontent.php:329
+msgid "After a click on \"edition\" button, in edition mode, you can"
+msgstr ""
+
+#: gpxcontent.php:332
+msgid "move markers"
+msgstr ""
+
+#: gpxcontent.php:333
+msgid "move line points"
+msgstr ""
+
+#: gpxcontent.php:334
+msgid "click on a line point to remove it"
+msgstr ""
+
+#: gpxcontent.php:335
+msgid "hover a \"middle marker\" (between two line points) and press \"Del\" to cut the line in two (this action cannot be canceled)"
+msgstr ""
+
+#: gpxcontent.php:338
+msgid "Shortcuts"
+msgstr ""
+
+#: gpxcontent.php:340
+msgid "toggle sidebar"
+msgstr ""
+
+#: gpxcontent.php:341
+msgid "toggle minimap"
+msgstr ""
+
+#: gpxcontent.php:344
+msgid "Documentation"
+msgstr ""
+
+#: gpxcontent.php:352
+msgid "Source management"
+msgstr ""
+
+#: gpxcontent.php:363
+msgid "Authors"
+msgstr ""
+