Flat / TOML hosting
TOML hosting: publish configuration files with a link
Give your TOML configuration a reading link. Publish from your browser or the CLI and let recipients inspect or download the source for their own project.
Checking your upload limits... · Public · Limits
Drop your TOML files here
or choose them from your device.
Select TOML filesWhat readers see at your TOML link
Flat displays highlighted TOML source, including comments, table names, strings, and values. The screenshot shows a small project configuration. Line wrapping and copying help readers inspect the source.
The viewer does not load dependencies or apply project settings. A TOML file remains a downloadable configuration artifact, with its original bytes intact.
A single file opens in the viewer. Several files open in the explorer, where readers can choose a file. Public links need no Flat account. Original downloads remain available if a preview cannot load.
The main link opens Flat's viewer. The exact path /project.toml serves the original file, without changing its contents.
How to upload TOML files and get a link
Prepare your file
Save the file as UTF-8 and validate it with a TOML parser compatible with the receiving tool. Check table names, quoted strings, arrays, and date values.
Use the filename required by the target application, and include setup notes when it depends on a particular tool version. Uploading a manifest does not install packages or build its project.
Publish from your browser or terminal
In your browserGo to uploaderDrop, publish, copy the link.
Drop your finished files into the uploader above, or select them from your device. Enter your email if signed out, then choose "Publish files".
Selected files need unique names and publish at the top level. Use the CLI for folders; the browser uploader does not accept folders or extract ZIPs.
TerminalNode.js 20+One command. Files or folders.
npx -y @getflat/cli deploy ./project.tomlReplace the example path with your file. Pass a folder to publish related files with their relative paths intact. The CLI prints the published URL.
Check before sharing
Review tables and multiline values in the preview. Download the original and load it with the target tool to check syntax and application-specific settings.
Signed-out uploads expire after 1 hour by default. Sign in before expiry to keep them online, or sign in before publishing for no default expiry.
What you can share with TOML hosting
Project settings handoffs
Share the configuration used for a specific project revision, with instructions for the software that reads it.
Annotated tool examples
Publish a small configuration that explains settings in comments and remains easy to copy into a local setup.
Keep a version, or keep an address.
Share this version
Every upload gets its own link. Publishing revised files creates a new link and leaves the earlier version unchanged. Use the version link when someone needs to review a specific upload.
Update files at one address
Use a named onflat.page address or your own domain. Sign in, then publish with the CLI using --domain. Publish revised files with the same domain to point that address to the new upload.
Named addresses are included on Free. Adding your own domain requires a paid plan. The browser uploader does not set up or repoint these addresses.
TOML hosting questions
Is hosting free, and what are the limits?
Yes. Signed-in Free includes 5 MiB per upload, 1 GiB of storage, and 5 GiB of monthly transfer, with no default expiry. The per-upload limit covers all files in that upload. Paid plans raise these limits.
Do readers need a Flat account?
No. Public links open without a Flat account. Anyone with the link can open the uploaded files. Password-protected links also require the visitor password.
Can I password-protect my upload?
Yes. Password protection is available on every plan. Add --password YOUR_PASSWORD to your CLI deploy command. It protects access to the upload and its files, but does not prevent someone with access from saving a copy. The browser uploader creates public uploads.
Can I replace files without changing the link?
A version link always refers to its original upload. For same-address updates, use a named address or your own domain. Publish revised files with the same --domain value in the CLI to point that address to the new upload.
What happens when an upload expires?
Flat stops serving it. An expired upload cannot be recovered. Signed-out uploads expire after 1 hour by default. For browser uploads, use the sign-in link shown after publishing. For CLI uploads, run npx -y @getflat/cli login. Complete sign-in before expiry to keep the upload online. If you chose a shorter expiry in the CLI, that deadline stays in place.
Will Flat install dependencies from a TOML manifest?
No. It hosts the source file. Run your package manager or build tool locally, then publish the generated static output if your goal is a website.
Does the preview validate TOML settings?
No. Syntax highlighting does not validate TOML syntax or the field names expected by your application. Check both with the tool that will use the configuration.
How large can an upload be?
Upload allowances depend on your plan and cover all files in the upload. Compare current plan limits. Preview availability also depends on format and processing support. The original file remains available to download if a preview is unavailable.
Can I embed the viewer on another website?
Flat's generated viewer cannot be embedded in an iframe and keeps Flat branding on every plan. Link to the viewer for reading or to the exact file URL for the original.
Another text format?
Find the guide for your text file.
Give your TOML files a link.
Publish your file, check the preview, and share the URL.
Publish filesFree to start · View pricing