What does Niconico Downloader do?

Niconico Downloader focuses on downloading Niconico videos for offline access. It is catalogued under Other dev tools on PulseGate.

Who should use Niconico Downloader?

Niconico Downloader is an open-source project built for niconico users who want to save videos locally.

Is Niconico Downloader free?

Yes — Niconico Downloader is free to use.

What platforms does Niconico Downloader run on?

Niconico Downloader runs on the web and embeddable surfaces.

Is Niconico Downloader still active?

Unverified. Niconico Downloader 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 are alternatives to Niconico Downloader?

Similar projects tracked by PulseGate include Who Hosts This, kotlin-formatter, and Base64.

Who develops Niconico Downloader?

Niconico Downloader is developed by nekoziroo.

How long has Niconico Downloader been around?

Niconico Downloader first shipped in 2017.

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Niconico Downloader

Name: Niconico Downloader
Author: nekoziroo

gitlab.comInfrastructure

GitLab.com

FreeWebEmbeddable

Visit gitlab.com

Overview

5 features

Niconico Downloader is an Other dev tools project. It focuses on downloading Niconico videos for offline access. Niconico Downloader is an open-source project aimed at niconico users who want to save videos locally. Niconico Downloader costs nothing to use. It ships for the web and embeddable surfaces.

It is developed by nekoziroo, and it first shipped in 2017. Among its 5 catalogued features are video downloading, firefox extension, and niconico support.

Video downloading
Firefox extension
Niconico support
Release versions
Tagged releases

Built with & integrations

Framework

Rails

Hosting

Cloudflare

AI providers

openai

Runs on

BrowserEmbeddable

Detected from

Cloudflare: cf-ray header · cf-cache-status header

Trust & compliance

Verified signals

HTTPSFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 08:43 UTC
Niconico Downloader verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Niconico Downloader

What does Niconico Downloader do?: Niconico Downloader focuses on downloading Niconico videos for offline access. It is catalogued under Other dev tools on PulseGate.
Who should use Niconico Downloader?: Niconico Downloader is an open-source project built for niconico users who want to save videos locally.
Is Niconico Downloader free?: Yes — Niconico Downloader is free to use.
What platforms does Niconico Downloader run on?: Niconico Downloader runs on the web and embeddable surfaces.
Is Niconico Downloader still active?: Unverified. Niconico Downloader 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 are alternatives to Niconico Downloader?: Similar projects tracked by PulseGate include Who Hosts This, kotlin-formatter, and Base64.Who Hosts This kotlin-formatter Base64
Who develops Niconico Downloader?: Niconico Downloader is developed by nekoziroo.
How long has Niconico Downloader been around?: Niconico Downloader first shipped in 2017.

At a glance

Pricing: Free
Platforms: Web · API
Languages: English
First seen: 8 Sept 2026
Built for: Niconico users who want to save videos locally
Model: Open source
Solves: Downloading Niconico videos for offline access.

Registered as

Firefox Add-ons: niconico-downloader

Developer

nekoziroo

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 8 Sept 2026

Identity audit (12)

Slug: niconico-downloader-gitlab-com
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 8 Sept 2026
Canonical URL: https://gitlab.com/nekoziroo/Niconico-Downloader

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Also in Other dev tools

Same category — not a similarity match