Get Your Substack MP4 File

Substack serves MP4 and that is the container you keep.

The process, start to finish

The Substack link is resolved by our media extractor. It asks Substack for the list of renditions it publishes for that item, takes the best progressive one and streams it through to you as the MP4 file. Nothing is transcoded on the way, so quality is whatever Substack encoded at. The renditions we see from Substack arrive as MP4. No credentials are involved anywhere in this path — neither yours nor ours.

Shortcut — stick tikt.com/ on the front of the Substack address instead of copying it here:

tikt.com/https://www.example.com/path/to/media
Three steps, start to finish
1. Copy the Substack link

Use the address bar or the platform's own share button — both give a URL the extractor recognises. Point it at the single item you want, not the page around it.

2. Let it read the renditions

Paste the URL above. The extractor asks Substack which renditions exist for that item and picks the best progressive one rather than assuming a quality.

3. Save what comes back

The file arrives in the container Substack served it in, and the extractor does not rebuild it — so what you end up with is what the uploader encoded, for better or worse.

Tikt.com Developer API

Convert URLs into downloadable assets via a precise REST interface. Extract video, audio, and image streams with deterministic responses and process at scale.

RESTful endpoints
Deterministic responses
Process at scale
API-key authentication
Python
import requests

response = requests.post(
    "https://api.tikt.com/api/download",
    headers={"Authorization": "API_KEY"},
    json={"url": "URL"},
)

for item in response.json()["items"]:
    print(item["type"], item["url"])

Technical FAQ — Tikt.com Substack Media Converter

It reads the rendition list Substack publishes for that item and takes the highest progressive one — a single file with video and audio already muxed, so nothing has to be recombined afterwards. It never re-encodes, so it cannot give you a quality Substack did not publish.

MP4 — whatever Substack itself serves. The container is passed straight through rather than rebuilt, so there is no second round of compression between the platform's copy and yours.

You get the best progressive rendition Substack publishes for that item, chosen automatically. There is no upscaling on offer, because inventing pixels that Substack never encoded would make the file bigger and not better.

Not by us. There is no re-encode step in the path, so the file you get is bit-for-bit what Substack served. Whatever compression Substack applied when it accepted the upload is already baked in and cannot be undone by anyone.

No cap you have to pay to lift and no trial that expires. The paid plan exists for people who download in bulk or want the API; a single Substack link does not need it and never will.

No. The file streams through and is gone; there is no library, no history and nothing to delete afterwards. That is also why we cannot re-send you something you downloaded last week.

Yes, identically. The work happens on our side, so an old phone on a slow connection is no worse at resolving the Substack link than a desktop — it just downloads the file more slowly afterwards.

No. This is a web page with a text box. Anything that asks you to install an executable to save the Substack link is asking for more access than the job requires.

The Mp4 downloader for Substack fetches the video stream the platform delivered and writes it as MP4 (H.264 + AAC).

Mp4 downloads from Substack top out at 1080p when the platform served that variant. Lower-resolution fallbacks exist if your IP gets a region-restricted stream.

MP4 (H.264 + AAC) plays in QuickTime, VLC, Windows Media Player, every modern browser, iOS / Android natively. No codec packs required.

No. Mp4 downloads from Substack via Tikt.com never carry a Tikt.com watermark. Where the source upload has an in-platform overlay, Tikt.com fetches the clean underlying variant when the CDN exposes one.

No signup. No account. No cookies tied to your Substack identity. Tikt.com doesn't log which Mp4 URL you pasted.

One Mp4 per URL by default. For multiple, paste each Substack URL into a fresh tab or use the batch endpoint documented under /api/.

Tikt.com does not retain downloaded files or log user activity. All media is processed in a stateless pipeline and transmitted directly to the requesting device.

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