Who should use Outbox for Tumblr?

Outbox for Tumblr is an open-source project built for tumblr users who send asks.

Is Outbox for Tumblr free?

Yes — Outbox for Tumblr is open source under the Open Source license and free to use.

What platforms does Outbox for Tumblr run on?

Outbox for Tumblr runs on the web and embeddable surfaces.

Is Outbox for Tumblr still maintained?

Unverified. Outbox for Tumblr has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Outbox for Tumblr?

Similar projects tracked by PulseGate include Hashrate Lens, SaveAI, and Codex File Drop.

Who makes Outbox for Tumblr?

Outbox for Tumblr is developed by AprilSylph.

When did Outbox for Tumblr launch?

Outbox for Tumblr first shipped in 2021.

Back to the index

Outbox for Tumblr

Name: Outbox for Tumblr
Author: AprilSylph

github.comInfrastructure

Outbox for Tumblr is an open-source browser extension that saves outgoing Tumblr asks automatically. It is intended for Tumblr users who want to retain and review a personal record of asks they send.

Open SourceWebEmbeddable

Visit github.com

Overview

4 features

Outbox for Tumblr is a Browser DevTools & extensions project. It focuses on keeping a record of outgoing Tumblr asks that would otherwise be difficult to retrieve. Outbox for Tumblr is an open-source project aimed at tumblr users who send asks. The project is open source (Open Source). Outbox for Tumblr is available on the web and embeddable surfaces.

AprilSylph builds and maintains Outbox for Tumblr, and it first shipped in 2021. Key capabilities include automatic ask saving, outgoing ask archive, and tumblr integration.

Summary written by a language model from the project’s public pages.

Automatic ask saving
Outgoing ask archive
Tumblr integration
Browser extension

Built with & integrations

Connectors

chrome

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSOpen SourceFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed9 Sept · 01:50 UTC
Outbox for Tumblr verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Outbox for Tumblr

What does Outbox for Tumblr do?: Outbox for Tumblr focuses on keeping a record of outgoing Tumblr asks that would otherwise be difficult to retrieve. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Outbox for Tumblr?: Outbox for Tumblr is an open-source project built for tumblr users who send asks.
Is Outbox for Tumblr free?: Yes — Outbox for Tumblr is open source under the Open Source license and free to use.
What platforms does Outbox for Tumblr run on?: Outbox for Tumblr runs on the web and embeddable surfaces.
Is Outbox for Tumblr still maintained?: Unverified. Outbox for Tumblr has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Outbox for Tumblr?: Similar projects tracked by PulseGate include Hashrate Lens, SaveAI, and Codex File Drop.Hashrate Lens SaveAI Codex File Drop
Who makes Outbox for Tumblr?: Outbox for Tumblr is developed by AprilSylph.
When did Outbox for Tumblr launch?: Outbox for Tumblr first shipped in 2021.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
First seen: 9 Sept 2026
Built for: Tumblr users who send asks
Model: Open source
Solves: Keeping a record of outgoing Tumblr asks that would otherwise be difficult to retrieve.

Registered as

Firefox Add-ons: outbox-for-tumblr

Developer

AprilSylph

Index record

Indexed: 9 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 9 Sept 2026

Identity audit (13)

Slug: outbox-for-tumblr-github-com
Lifecycle state recorded: 9 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 9 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 9 Sept 2026
Canonical URL: https://github.com/AprilSylph/Outbox-for-Tumblr

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