CommandDescription
Content-TypeMedia type of the body
AuthorizationCredentials for auth
AcceptAcceptable response types
Cache-ControlCaching directives
CookieClient cookies
Set-CookieSet a cookie
Content-LengthSize of the body
User-AgentClient software info
RefererPrevious page URL
OriginRequest origin
X-Forwarded-ForOriginal client IP
Access-Control-Allow-OriginCORS allowed origins
ETagResource version tag
LocationRedirect URL
Retry-AfterWhen to retry

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About HTTP Headers

HTTP Headers is a free, browser-based utility designed to make developer and design work as quick and frictionless as possible. The goal was to keep the path from "open the page" to "get the result" as short as possible. No mandatory account, no cookie wall, no upsell at every step. Like everything else in the developer collection, it is free, ad-light, and works on mobile as well as desktop.

When you'd reach for HTTP Headers

  • You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.

    Marketers and ops people whose primary tool is metered.

    Stay productive without burning credits.

  • You need to handle a one-off task right before a meeting and don't have time to install anything.

    Anyone working remotely on a borrowed or restricted machine.

    Open the page, get the result, paste it into your doc — under a minute.

  • You're on a public or shared machine and don't want to leave traces of what you're working on.

    Travelers, contractors, anyone working from a friend's computer.

    Nothing is uploaded, nothing persists if you're not signed in.

  • You're cleaning up a folder of files that accumulated over a project and need to standardize them.

    Designers, writers, and developers wrapping up deliverables.

    Drop each file in, copy the output, move on.

Frequently asked about HTTP Headers

Are my files uploaded to a server when I use HTTP Headers?
HTTP Headers processes everything in your browser using local APIs. Your files never leave your device.
Will HTTP Headers change my original file?
Never. HTTP Headers only reads your input file and produces a new output file.
Can I use HTTP Headers commercially?
Yes. The output of HTTP Headers belongs entirely to you, with no licensing restrictions.
Is HTTP Headers really free?
Yes — HTTP Headers is free for unlimited personal use, with no account required and no watermark on the output.
Does HTTP Headers work on mobile?
Yes, HTTP Headers is fully responsive and tested on iOS Safari and Android Chrome.