Best Free Denoiser Plugins for Photoshop & Lightroom (2026)

The Best Free Denoiser Plugins for Photoshop and Lightroom

The best free denoiser plugin for Photoshop is Nik Collection's Dfine 2 — available as a completely free download from DxO. For Lightroom, the best free option is the built-in AI Denoise feature in Lightroom Mobile (iOS/Android). If you'd rather skip plugins entirely, imgmend.com provides AI denoising in your browser — free, no plugin, no software installation needed.

Why Use a Plugin Instead of Built-In Tools?

Photoshop's built-in Filter → Noise → Reduce Noise is a traditional blur-based algorithm — it reduces noise but also softens genuine detail. Third-party denoiser plugins use more advanced algorithms (and increasingly, AI) that remove noise while preserving or even enhancing edge sharpness. The result is visually cleaner and sharper than what the built-in tools produce.

Lightroom's classic Luminance Noise Reduction slider has the same limitation — effective for mild grain but aggressive settings produce a "watercolor" or "plastic" look. The AI Denoise button (Lightroom 2023+) dramatically outperforms the slider and is free on mobile.

1. Nik Collection — Dfine 2 (Free, Best Photoshop Plugin)

The best free denoiser plugin for Photoshop. Dfine 2 was originally a premium plugin by Nik Software, acquired by Google, and made free. DxO now distributes the entire Nik Collection with Dfine 2 included at no charge.

How to install:

1. Go to nikcollection.dxo.com and download the free Nik Collection installer.
2. Run the installer — it automatically installs as a plugin in Photoshop, Lightroom, and Photoshop Elements.
3. In Photoshop: access via Filter → Nik Collection → Dfine 2.
4. In Lightroom Classic: access via Photo → Edit In → Dfine 2.

How Dfine 2 works:

• Analyzes the image and automatically creates a noise profile for your specific photo
• Applies separate reduction for luminance noise and color noise
• Uses control points to apply different levels of reduction in different areas (e.g., more reduction on the background, less on the subject's face)
• Preserves edge contrast better than Photoshop's built-in filter

• ✅ Completely free
• ✅ Works in Photoshop, Lightroom Classic, Photoshop Elements
• ✅ Better edge preservation than built-in tools
• ✅ Control points for selective adjustment
• ⚠️ Not AI-based — Topaz and Real-ESRGAN produce better results on heavy noise
• ⚠️ Requires ~1 GB download for the full Nik Collection

2. G'MIC Plugin for GIMP (Free, Open Source)

Best free denoiser plugin for GIMP users. G'MIC (GREYC's Magic for Image Computing) is a free, open-source image processing framework with dozens of denoising algorithms including non-local means, bilateral filter, and frequency-based noise reduction — all significantly better than GIMP's built-in tools.

Install: Download from gmic.eu → install → access via GIMP Filters → G'MIC-Qt → search "Denoise".

• ✅ Completely free and open source
• ✅ Multiple advanced denoising algorithms beyond what any built-in tool offers
• ✅ Regular updates from active development community
• ⚠️ GIMP-specific — doesn't work in Photoshop or Lightroom
• ⚠️ Complex interface

3. Lightroom AI Denoise (Free on Mobile)

Best free AI denoiser for Lightroom users on mobile. Adobe added AI Denoise to Lightroom in 2023. On Lightroom Mobile (iOS/Android), this feature is available in the free tier at no cost. On Lightroom desktop, it requires a Creative Cloud subscription.

How to access on mobile: Open your photo → tap the Detail icon → tap the Denoise button. For RAW files, the AI processes the raw sensor data directly, producing significantly better results than the Luminance slider.

• ✅ Free on iOS and Android (Lightroom Mobile)
• ✅ AI-powered — dramatically better than the Luminance slider
• ✅ Best results on RAW files from modern cameras
• ⚠️ Requires a free Adobe account
• ⚠️ Desktop version requires Creative Cloud ($9.99/month)

4. Smart Sharpen + Reduce Noise Combo (Photoshop, Free Built-In)

No plugin needed. While not a third-party plugin, combining Photoshop's built-in tools strategically produces better results than using Reduce Noise alone:

1. Run Filter → Noise → Reduce Noise (Strength 6, Preserve Details 50%, Reduce Color Noise 70%)
2. Then run Filter → Sharpen → Smart Sharpen (Amount 60%, Radius 0.8px, Remove Gaussian Blur)

The Reduce Noise pass removes grain; Smart Sharpen recovers the edge detail that was softened. This combination approaches the quality of some paid plugins for moderate grain.

5. Skip the Plugin: Browser-Based AI (No Install Required)

If you'd rather not install any plugins, imgmend.com gives you AI-quality denoising in 30 seconds with zero setup.

imgmend.com uses Real-ESRGAN — the same generation of model architecture that powers premium paid plugins like Topaz DeNoise AI. You don't need Photoshop, Lightroom, or any plugin. Just upload your image in any browser and download the result.

Method	Cost	Setup Required	AI Quality	RAW Support
imgmend.com	Free (3/day)	None (browser)	Yes	No
Nik Dfine 2	Free	~1 GB install	No (algorithm)	Via Lightroom
G'MIC for GIMP	Free	GIMP + plugin	No	No
Lightroom AI Denoise	Free (mobile)	Adobe account	Yes	Yes
Topaz DeNoise AI	$99	1.5 GB install	Yes	Yes

Which Free Denoiser Plugin Should You Use?

The right choice depends on your workflow:

• Already use Photoshop/Lightroom Classic? → Install Nik Dfine 2. It integrates directly and is the best free algorithm-based plugin available.
• Shoot RAW and edit in Lightroom on mobile? → Use Lightroom Mobile's free AI Denoise — no plugin needed, AI quality, best free option for RAW.
• Use GIMP? → Install G'MIC. It provides algorithms far beyond GIMP's built-in tools.
• Don't want to install anything? → Use imgmend.com — browser-based, AI quality, zero setup, free for 3 images per day.
• Need to process RAW files with maximum quality and are willing to pay? → Topaz DeNoise AI at $99 is the best overall option.

Frequently Asked Questions

What is the best free denoiser plugin for Photoshop?

Nik Collection's Dfine 2 is the best free plugin for Photoshop — download the free Nik Collection from nikcollection.dxo.com and it installs automatically into Photoshop. It uses noise profiling and control points for more precise reduction than Photoshop's built-in Reduce Noise filter.

Is there a free AI denoiser plugin for Photoshop?

Photoshop 2023+ includes AI Denoise via Filter → Neural Filters (free with a Creative Cloud subscription). For a completely free AI option with no subscription, use imgmend.com — browser-based, Real-ESRGAN AI, no Photoshop needed, 3 images per day free.

Is Nik Collection completely free?

Yes — DxO offers the full Nik Collection (including Dfine 2, Analog Efex, Color Efex, Silver Efex, and more) as a free download with no trial period or time limit. The full suite is available at nikcollection.dxo.com at no cost.

What is the best free noise reduction for Lightroom Classic?

Install Nik Dfine 2 (free) and access it via Photo → Edit In → Dfine 2. For AI quality on mobile, Lightroom Mobile's built-in AI Denoise button is free and produces excellent results on RAW files. For desktop Lightroom, AI Denoise requires a Creative Cloud subscription.

Can I denoise photos without any plugins or subscriptions?

Yes. imgmend.com is a browser-based AI denoiser — no plugin, no software, no subscription. Free for 3 images per day with no account required. Uses Real-ESRGAN for quality comparable to premium plugins. Results in 10–30 seconds.

Denoise photos free — no plugin, no software needed →