diff --git a/cs/i18n/cs.json b/cs/i18n/cs.json
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+++ b/cs/i18n/cs.json
@@ -0,0 +1,160 @@
+{
+    "PrivateBin": "PrivateBin",
+    "%s is a minimalist, open source online pastebin where the server has zero knowledge of pasted data. Data is encrypted/decrypted <i>in the browser</i> using 256 bits AES. More information on the <a href=\"https://privatebin.info/\">project page</a>.": "%s je minimalistický open source 'pastebin' server, který neanalyzuje vložená data. Data jsou šifrována <i>v prohlížeči</i> pomocí 256 bitů AES. Více informací na <a href=\"https://privatebin.info/\">stránce projetu</a>.",
+    "Because ignorance is bliss": "Protože nevědomost je sladká",
+    "en": "cs",
+    "Paste does not exist, has expired or has been deleted.": "Vložený text neexistuje, expiroval nebo byl odstraněn.",
+    "%s requires php %s or above to work. Sorry.": "%s vyžaduje php %s nebo vyšší. Lituji.",
+    "%s requires configuration section [%s] to be present in configuration file.": "%s requires configuration section [%s] to be present in configuration file.",
+    "Please wait %d seconds between each post.": "Počet sekund do dalšího příspěvku: %d.",
+    "Paste is limited to %s of encrypted data.": "Příspěvek je limitován na %s šífrovaných dat",
+    "Invalid data.": "Chybná data.",
+    "You are unlucky. Try again.": "Lituji, zkuste to znovu.",
+    "Error saving comment. Sorry.": "Chyba při ukládání komentáře.",
+    "Error saving paste. Sorry.": "Chyba při ukládání příspěvku.",
+    "Invalid paste ID.": "Chybně vložené ID.",
+    "Paste is not of burn-after-reading type.": "Paste is not of burn-after-reading type.",
+    "Wrong deletion token. Paste was not deleted.": "Wrong deletion token. Paste was not deleted.",
+    "Paste was properly deleted.": "Paste was properly deleted.",
+    "JavaScript is required for %s to work. Sorry for the inconvenience.": "JavaScript is required for %s to work. Sorry for the inconvenience.",
+    "%s requires a modern browser to work.": "%%s requires a modern browser to work.",
+    "New": "Nový",
+    "Send": "Odeslat",
+    "Clone": "Klonovat",
+    "Raw text": "Pouze Text",
+    "Expires": "Expirace",
+    "Burn after reading": "Po přečtení smazat",
+    "Open discussion": "Povolit komentáře",
+    "Password (recommended)": "Heslo (doporučeno)",
+    "Discussion": "Komentáře",
+    "Toggle navigation": "Toggle navigation",
+    "%d seconds": [
+        "%d sekuda",
+        "%d sekundy",
+        "%d sekund"
+    ],
+    "%d minutes": [
+        "%d minuta",
+        "%d minuty",
+        "%d minut"
+    ],
+    "%d hours": [
+        "%d hodin",
+        "%d hodiny",
+        "%d hodin"
+    ],
+    "%d days": [
+        "%d den",
+        "%d dny",
+        "%d dní"
+    ],
+    "%d weeks": [
+        "%d týden",
+        "%d týdeny",
+        "%d týdnů"
+    ],
+    "%d months": [
+        "%d měsíc",
+        "%d měsíce",
+        "%d měsíců"
+    ],
+    "%d years": [
+        "%d rok",
+        "%d roky",
+        "%d roků"
+    ],
+    "Never": "Nikdy",
+    "Note: This is a test service: Data may be deleted anytime. Kittens will die if you abuse this service.": "Note: This is a test service: Data may be deleted anytime. Kittens will die if you abuse this service.",
+    "This document will expire in %d seconds.": [
+        "Tento dokument expiruje za %d sekundu.",
+        "Tento dokument expiruje za %d sekundy.",
+        "Tento dokument expiruje za %d sekund."
+    ],
+    "This document will expire in %d minutes.": [
+        "Tento dokument expiruje za %d minutu.",
+        "Tento dokument expiruje za %d minuty.",
+        "Tento dokument expiruje za %d minut."
+    ],
+    "This document will expire in %d hours.": [
+        "Tento dokument expiruje za %d hodinu.",
+        "Tento dokument expiruje za %d hodiny.",
+        "Tento dokument expiruje za %d hodin."
+    ],
+    "This document will expire in %d days.": [
+        "Tento dokument expiruje za %d den.",
+        "Tento dokument expiruje za %d dny.",
+        "Tento dokument expiruje za %d dny."
+    ],
+    "This document will expire in %d months.": [
+        "Tento dokument expiruje za %d měsíc.",
+        "Tento dokument expiruje za %d měsíce.",
+        "Tento dokument expiruje za %d měsíců."
+    ],
+    "Please enter the password for this paste:": "Zadejte prosím heslo:",
+    "Could not decrypt data (Wrong key?)": "Could not decrypt data (Wrong key?)",
+    "Could not delete the paste, it was not stored in burn after reading mode.": "Could not delete the paste, it was not stored in burn after reading mode.",
+    "FOR YOUR EYES ONLY. Don't close this window, this message can't be displayed again.": "FOR YOUR EYES ONLY. Don't close this window, this message can't be displayed again.",
+    "Could not decrypt comment; Wrong key?": "Could not decrypt comment; Wrong key?",
+    "Reply": "Reply",
+    "Anonymous": "Anonym",
+    "Avatar generated from IP address": "Avatar generated from IP address",
+    "Add comment": "Přidat komentář",
+    "Optional nickname…": "Volitelný nickname…",
+    "Post comment": "Odeslat komentář",
+    "Sending comment…": "Odesílání komentáře…",
+    "Comment posted.": "Komentář odeslán.",
+    "Could not refresh display: %s": "Could not refresh display: %s",
+    "unknown status": "neznámý stav",
+    "server error or not responding": "Chyba na serveru nebo server neodpovídá",
+    "Could not post comment: %s": "Nelze odeslat komentář: %s",
+    "Sending paste…": "Odesílání příspěvku…",
+    "Your paste is <a id=\"pasteurl\" href=\"%s\">%s</a> <span id=\"copyhint\">(Hit [Ctrl]+[c] to copy)</span>": "Váš link je <a id=\"pasteurl\" href=\"%s\">%s</a> <span id=\"copyhint\">(Stiskněte [Ctrl]+[c] pro zkopírování)</span>",
+    "Delete data": "Odstranit data",
+    "Could not create paste: %s": "Nelze vytvořit příspěvek: %s",
+    "Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)": "Nepodařilo se dešifrovat příspěvek: V adrese chybí dešifrovací klíč (Možnou příčinou může být URL shortener?)",
+    "Format": "Formát",
+    "Plain Text": "Prostý Text",
+    "Source Code": "Zdrojový kód",
+    "Markdown": "Markdown",
+    "Download attachment": "Stáhnout přílohu",
+    "Cloned: '%s'": "Klonováno: '%s'",
+    "The cloned file '%s' was attached to this paste.": "The cloned file '%s' was attached to this paste.",
+    "Attach a file": "Připojit soubor",
+    "alternatively drag & drop a file or paste an image from the clipboard": "alternatively drag & drop a file or paste an image from the clipboard",
+    "File too large, to display a preview. Please download the attachment.": "Soubor je příliš velký pro zobrazení náhledu. Stáhněte si přílohu.",
+    "Remove attachment": "Odstranit přílohu",
+    "Your browser does not support uploading encrypted files. Please use a newer browser.": "Váš prohlížeč nepodporuje nahrávání šifrovaných souborů. Použijte modernější verzi prohlížeče.",
+    "Invalid attachment.": "Chybná příloha.",
+    "Options": "Volby",
+    "Shorten URL": "Shorten URL",
+    "Editor": "Editor",
+    "Preview": "Náhled",
+    "%s requires the PATH to end in a \"%s\". Please update the PATH in your index.php.": "%s requires the PATH to end in a \"%s\". Please update the PATH in your index.php.",
+    "Decrypt": "Decrypt",
+    "Enter password": "Zadejte heslo",
+    "Loading…": "Loading…",
+    "Decrypting paste…": "Decrypting paste…",
+    "Preparing new paste…": "Preparing new paste…",
+    "In case this message never disappears please have a look at <a href=\"%s\">this FAQ for information to troubleshoot</a>.": "In case this message never disappears please have a look at <a href=\"%s\">this FAQ for information to troubleshoot</a>.",
+    "+++ no paste text +++": "+++ žádný vložený text +++",
+    "Could not get paste data: %s": "Could not get paste data: %s",
+    "QR code": "QR code",
+    "This website is using an insecure HTTP connection! Please use it only for testing.": "This website is using an insecure HTTP connection! Please use it only for testing.",
+    "For more information <a href=\"%s\">see this FAQ entry</a>.": "For more information <a href=\"%s\">see this FAQ entry</a>.",
+    "Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.": "Your browser may require an HTTPS connection to support the WebCrypto API. Try <a href=\"%s\">switching to HTTPS</a>.",
+    "Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.": "Your browser doesn't support WebAssembly, used for zlib compression. You can create uncompressed documents, but can't read compressed ones.",
+    "waiting on user to provide a password": "waiting on user to provide a password",
+    "Could not decrypt data. Did you enter a wrong password? Retry with the button at the top.": "Could not decrypt data. Did you enter a wrong password? Retry with the button at the top.",
+    "Retry": "Retry",
+    "Showing raw text…": "Showing raw text…",
+    "Notice:": "Notice:",
+    "This link will expire after %s.": "This link will expire after %s.",
+    "This link can only be accessed once, do not use back or refresh button in your browser.": "This link can only be accessed once, do not use back or refresh button in your browser.",
+    "Link:": "Link:",
+    "Recipient may become aware of your timezone, convert time to UTC?": "Recipient may become aware of your timezone, convert time to UTC?",
+    "Use Current Timezone": "Use Current Timezone",
+    "Convert To UTC": "Convert To UTC",
+    "Close": "Close",
+    "Encrypted note on PrivateBin": "Encrypted note on PrivateBin",
+    "Visit this link to see the note. Giving the URL to anyone allows them to access the note, too.": "Visit this link to see the note. Giving the URL to anyone allows them to access the note, too."
+}