diff --git a/headers.go b/headers.go
new file mode 100644
index 0000000000..7c3b2cb2a4
--- /dev/null
+++ b/headers.go
@@ -0,0 +1,164 @@
+package fasthttp
+
+// Headers
+const (
+	// Authentication
+	HeaderAuthorization      = "Authorization"
+	HeaderProxyAuthenticate  = "Proxy-Authenticate"
+	HeaderProxyAuthorization = "Proxy-Authorization"
+	HeaderWWWAuthenticate    = "WWW-Authenticate"
+
+	// Caching
+	HeaderAge           = "Age"
+	HeaderCacheControl  = "Cache-Control"
+	HeaderClearSiteData = "Clear-Site-Data"
+	HeaderExpires       = "Expires"
+	HeaderPragma        = "Pragma"
+	HeaderWarning       = "Warning"
+
+	// Client hints
+	HeaderAcceptCH         = "Accept-CH"
+	HeaderAcceptCHLifetime = "Accept-CH-Lifetime"
+	HeaderContentDPR       = "Content-DPR"
+	HeaderDPR              = "DPR"
+	HeaderEarlyData        = "Early-Data"
+	HeaderSaveData         = "Save-Data"
+	HeaderViewportWidth    = "Viewport-Width"
+	HeaderWidth            = "Width"
+
+	// Conditionals
+	HeaderETag              = "ETag"
+	HeaderIfMatch           = "If-Match"
+	HeaderIfModifiedSince   = "If-Modified-Since"
+	HeaderIfNoneMatch       = "If-None-Match"
+	HeaderIfUnmodifiedSince = "If-Unmodified-Since"
+	HeaderLastModified      = "Last-Modified"
+	HeaderVary              = "Vary"
+
+	// Connection management
+	HeaderConnection = "Connection"
+	HeaderKeepAlive  = "Keep-Alive"
+
+	// Content negotiation
+	HeaderAccept         = "Accept"
+	HeaderAcceptCharset  = "Accept-Charset"
+	HeaderAcceptEncoding = "Accept-Encoding"
+	HeaderAcceptLanguage = "Accept-Language"
+
+	// Controls
+	HeaderCookie      = "Cookie"
+	HeaderExpect      = "Expect"
+	HeaderMaxForwards = "Max-Forwards"
+	HeaderSetCookie   = "Set-Cookie"
+
+	// CORS
+	HeaderAccessControlAllowCredentials = "Access-Control-Allow-Credentials"
+	HeaderAccessControlAllowHeaders     = "Access-Control-Allow-Headers"
+	HeaderAccessControlAllowMethods     = "Access-Control-Allow-Methods"
+	HeaderAccessControlAllowOrigin      = "Access-Control-Allow-Origin"
+	HeaderAccessControlExposeHeaders    = "Access-Control-Expose-Headers"
+	HeaderAccessControlMaxAge           = "Access-Control-Max-Age"
+	HeaderAccessControlRequestHeaders   = "Access-Control-Request-Headers"
+	HeaderAccessControlRequestMethod    = "Access-Control-Request-Method"
+	HeaderOrigin                        = "Origin"
+	HeaderTimingAllowOrigin             = "Timing-Allow-Origin"
+	HeaderXPermittedCrossDomainPolicies = "X-Permitted-Cross-Domain-Policies"
+
+	// Do Not Track
+	HeaderDNT = "DNT"
+	HeaderTk  = "Tk"
+
+	// Downloads
+	HeaderContentDisposition = "Content-Disposition"
+
+	// Message body information
+	HeaderContentEncoding = "Content-Encoding"
+	HeaderContentLanguage = "Content-Language"
+	HeaderContentLength   = "Content-Length"
+	HeaderContentLocation = "Content-Location"
+	HeaderContentType     = "Content-Type"
+
+	// Proxies
+	HeaderForwarded       = "Forwarded"
+	HeaderVia             = "Via"
+	HeaderXForwardedFor   = "X-Forwarded-For"
+	HeaderXForwardedHost  = "X-Forwarded-Host"
+	HeaderXForwardedProto = "X-Forwarded-Proto"
+
+	// Redirects
+	HeaderLocation = "Location"
+
+	// Request context
+	HeaderFrom           = "From"
+	HeaderHost           = "Host"
+	HeaderReferer        = "Referer"
+	HeaderReferrerPolicy = "Referrer-Policy"
+	HeaderUserAgent      = "User-Agent"
+
+	// Response context
+	HeaderAllow  = "Allow"
+	HeaderServer = "Server"
+
+	// Range requests
+	HeaderAcceptRanges = "Accept-Ranges"
+	HeaderContentRange = "Content-Range"
+	HeaderIfRange      = "If-Range"
+	HeaderRange        = "Range"
+
+	// Security
+	HeaderContentSecurityPolicy           = "Content-Security-Policy"
+	HeaderContentSecurityPolicyReportOnly = "Content-Security-Policy-Report-Only"
+	HeaderCrossOriginResourcePolicy       = "Cross-Origin-Resource-Policy"
+	HeaderExpectCT                        = "Expect-CT"
+	HeaderFeaturePolicy                   = "Feature-Policy"
+	HeaderPublicKeyPins                   = "Public-Key-Pins"
+	HeaderPublicKeyPinsReportOnly         = "Public-Key-Pins-Report-Only"
+	HeaderStrictTransportSecurity         = "Strict-Transport-Security"
+	HeaderUpgradeInsecureRequests         = "Upgrade-Insecure-Requests"
+	HeaderXContentTypeOptions             = "X-Content-Type-Options"
+	HeaderXDownloadOptions                = "X-Download-Options"
+	HeaderXFrameOptions                   = "X-Frame-Options"
+	HeaderXPoweredBy                      = "X-Powered-By"
+	HeaderXXSSProtection                  = "X-XSS-Protection"
+
+	// Server-sent event
+	HeaderLastEventID = "Last-Event-ID"
+	HeaderNEL         = "NEL"
+	HeaderPingFrom    = "Ping-From"
+	HeaderPingTo      = "Ping-To"
+	HeaderReportTo    = "Report-To"
+
+	// Transfer coding
+	HeaderTE               = "TE"
+	HeaderTrailer          = "Trailer"
+	HeaderTransferEncoding = "Transfer-Encoding"
+
+	// WebSockets
+	HeaderSecWebSocketAccept     = "Sec-WebSocket-Accept"
+	HeaderSecWebSocketExtensions = "Sec-WebSocket-Extensions"
+	HeaderSecWebSocketKey        = "Sec-WebSocket-Key"
+	HeaderSecWebSocketProtocol   = "Sec-WebSocket-Protocol"
+	HeaderSecWebSocketVersion    = "Sec-WebSocket-Version"
+
+	// Other
+	HeaderAcceptPatch         = "Accept-Patch"
+	HeaderAcceptPushPolicy    = "Accept-Push-Policy"
+	HeaderAcceptSignature     = "Accept-Signature"
+	HeaderAltSvc              = "Alt-Svc"
+	HeaderDate                = "Date"
+	HeaderIndex               = "Index"
+	HeaderLargeAllocation     = "Large-Allocation"
+	HeaderLink                = "Link"
+	HeaderPushPolicy          = "Push-Policy"
+	HeaderRetryAfter          = "Retry-After"
+	HeaderServerTiming        = "Server-Timing"
+	HeaderSignature           = "Signature"
+	HeaderSignedHeaders       = "Signed-Headers"
+	HeaderSourceMap           = "SourceMap"
+	HeaderUpgrade             = "Upgrade"
+	HeaderXDNSPrefetchControl = "X-DNS-Prefetch-Control"
+	HeaderXPingback           = "X-Pingback"
+	HeaderXRequestedWith      = "X-RequestedWith"
+	HeaderXRobotsTag          = "X-Robots-Tag"
+	HeaderXUACompatible       = "X-UA-Compatible"
+)