ToolDeck.online
INITIALIZING_
0%Brighten dark, grainy footage and remove night-time noise right in your browser. Use the Low light preset to lift shadows, clean up colour noise, and export a crisp MP4. No upload, no watermark, no sign-up.
To fix a low-light video, you need to brighten the shadows and remove the grain that appears when a camera sensor struggles in the dark. This free tool does both in your browser: add your video, use the Low light preset to lift brightness and remove colour noise, check the result with the Before/After slider, then render and download a clean MP4. Your video is never uploaded.
Follow these steps to brighten grainy, low-light footage. The first five take a minute. Rendering time depends on the length and resolution of your clip.
Click Choose video, or drag an MP4, MOV or WebM file onto the tool. The file opens locally in your browser and is not uploaded anywhere.
Choose Low light from the presets panel. This preset automatically raises brightness, boosts colour noise removal, and increases temporal noise reduction to handle the grain typical of night shots.
Use the Brightness slider to lift the shadows. Use the Temporal and Colour noise sliders to remove the grain that becomes visible after brightening. Watch the Before/After slider to find the balance.
Switch on Detail view (100%) and zoom into a dark area. This shows you exactly how much noise is left and whether the brightening has introduced any artifacts.
Night footage often has wind noise or hiss. Open the Audio noise tab, raise the Low cut for rumble, and use the noise reduction slider to clean up the hiss.
Click Render clean video, choose your resolution and frame rate, then start. When it finishes, download your brightened, denoised MP4. Render a short time range first to test your settings.
One tool for lifting shadows, removing high-ISO grain, cleaning colour noise, and sharpening the result, with a live before and after preview.
The brightness slider lifts dark areas while a tone curve prevents the brighter parts of the image from clipping. This is safer than a simple exposure adjustment.
Low-light footage is inherently noisy. The temporal and spatial denoisers target the flicker and speckle that high ISO settings create, leaving a cleaner picture after brightening.
Phone and action cameras create heavy red and blue speckles in dark scenes. The colour noise slider blurs only the chroma channels, so edges stay sharp while the speckles vanish.
Brightening and denoising can soften a picture. The Preserve detail slider protects edges, faces and text so the result looks natural, not waxy.
Drag a comparison line across the frame to see exactly how much the shadows have been lifted and how much noise has been removed.
Shows a centre crop at real pixel size so you can judge grain and sharpness the way a viewer would on a large screen.
Samples frames at native resolution, measures how noisy the footage is, and recommends slider values. Includes a live noise score before and after.
Night recordings often have wind rumble and hiss. The audio tab learns the background noise and removes it, with a low cut to eliminate rumble.
Contrast, saturation, and optional film grain help you finish the picture after brightening, so the result looks like a deliberate grade, not just a lifted exposure.
Render only a section of the video to test your brightening and denoising settings in seconds before committing to the full export.
Everything happens on your device. No account, no upload, no watermark on the exported file.
The same engine handles iPhone night mode clips, webcam recordings in dim rooms, and security camera footage with poor lighting.
Dark video is usually a mix of underexposure and sensor noise. Knowing which problem you have tells you which slider to move.
A good fix uses the fact that noise changes from frame to frame while the real picture does not. This tool runs a five stage pipeline on every frame, and a separate pipeline for audio.
Every pixel is compared with the same pixel in the previous cleaned frame. If the difference is small, it is treated as noise and blended. If it is large, it is treated as movement and left alone. This removes the flicker common in dark scenes.
Each pixel is averaged with its eight neighbours, weighted by how similar their colours are. Flat noisy areas get smoothed, edges are kept. This removes the static grain in the dark.
The picture is split into brightness and colour. Only the colour part is blurred, and brightness is kept untouched. This removes coloured speckles without making faces look soft.
A small unsharp mask raises real edge contrast. Differences below a noise threshold are damped, so sharpening does not bring grain back.
A safe brightness curve lifts the shadows without clipping the highlights. Contrast, saturation, vignette and optional film grain are applied at the end.
The audio is split into short overlapping frames and converted to the frequency domain. The tool measures the average noise spectrum from the quietest parts, then lowers each frequency that does not rise clearly above that noise.
Because brightening and denoising can soften a picture, the tool adds a noise-aware sharpener and a Preserve detail control, so you can find the balance between a bright and a natural look.
Use this guide to know which way to move a slider when something looks wrong.
| Slider | What it does | Raise it if | Lower it if | Typical range |
|---|---|---|---|---|
| Brightness | Lifts the dark areas of the image. | The video is still too dark after applying the preset. | The bright parts of the image start to clip, or the picture looks washed out. | Typical: 5 to 20. Extreme underexposure: up to 30. |
| Grain and noise (spatial) | How strongly each frame is smoothed. | Visible grain remains, especially in shadows. | Faces look waxy or fine detail disappears. | Typical: 40 to 70 for night video. |
| Colour noise | How strongly the colour channels are blurred. | You still see red and blue speckles on dark walls or skies. | Colours bleed over edges or look washed out. | Typical: 70 to 90 for phone night video. |
| Temporal (frame to frame) | How much each frame is blended with the previous one. | Noise flickers on a still shot, or the picture crawls. | You see ghost trails behind moving people or cars. | Typical: 40 to 60. Fast action should go lower. |
| Preserve detail | How strongly edges and fine textures are protected. | The result looks too soft and fine detail is lost. | Noise remains around edges, or you want a smoother look. | Typical: 50 to 60. |
| Sharpen | Edge contrast added after cleaning. | The picture looks soft after denoising and brightening. | Edges show bright halos or noise starts to come back. | Typical: 15 to 30. |
| Film grain | Adds a fine, even grain on top of the cleaned picture. | Smooth gradients look plasticky or show banding. | You want a fully clean, digital look. | Typical: 8 to 15 for a subtle look. |
Start from the preset in the table, then use the Before and After slider and the 100% detail view to adjust.
| Footage | Preset | Tip |
|---|---|---|
| Night city street (phone) | Low light | Raise Colour noise to 80+, add Brightness 10–15. Keep Temporal around 50. |
| Indoor concert or club | Low light | Raise Temporal to 60+ to handle flicker. Use Colour noise 85+. |
| Dimly lit room (webcam) | Webcam | Raise Brightness and Sharpen. Use moderate noise reduction. |
| Security camera at night | Low light | Raise Brightness and Temporal. Use Colour noise heavily to remove speckle. |
| Underexposed daylight shot | Light clean-up | Raise Brightness only. Use minimal denoising if grain is low. |
| Night sky or astrophotography | Balanced | Raise Colour noise and Temporal. Keep Brightness low to avoid washing out stars. |
From phone clips to security footage, here are the most common jobs for a dark video brightener.
Fix the dark, grainy clips you shot at a party, concert, or on a late-night walk.
Brighten dim rooms and hallways without washing out the windows.
Make night recordings easier to identify details, faces, and licence plates.
Clean up Zoom, Teams, and course recordings made without proper lighting.
Rescue footage from the dance floor or a dimly lit venue.
Brighten shadows in landscapes and cityscapes shot after sunset.
Remove the heavy grain from GoPro and DJI clips recorded in low light.
Improve dark VHS and camcorder tapes before sharing them with family.
Fix dark lecture hall or bedroom recordings before uploading.
Make night-time TikToks, Reels, and Shorts look clean and professional.
There are three common ways to fix a dark video. This table compares them by category, so you can choose the right one for the job.
| Feature | This tool | Desktop editors | Upload websites |
|---|---|---|---|
| Cost | Free | Often paid or subscription | Free tier with limits or watermark |
| Install needed | No, runs in the browser | Yes, large download | No |
| Video uploaded to a server | No | No | Yes |
| Brighten shadows | Yes | Yes, with colour grading tools | Sometimes |
| Remove high-ISO grain | Yes | Yes, with plugins | Rarely |
| Before and after preview | Yes, with draggable slider | Yes | Sometimes |
| Speed | Depends on your CPU | Fast with GPU plugins | Depends on the queue |
| Best for | Quick, private fixes | Professional grading and long projects | Occasional short clips |
The comparison describes general categories of software, not specific products. Features and limits vary by product and plan.
Most online video tools upload your file to a server. This one does not.
Brightening and noise reduction process every pixel of every frame, so a few habits make a big difference.
Noise reduction works best when the footage starts as clean as possible. These habits reduce noise at the source.
The best way to fix low-light video is to avoid shooting in low light. Use a lamp, a window, or a small LED panel.
Keep ISO as low as possible. Use a wider aperture or slower shutter before raising ISO.
A shutter speed of about double the frame rate lets in more light without making motion look odd.
Slightly bright footage has less visible noise than dark footage that you brighten later.
Static shots let the temporal filter work at full strength, with almost no ghosting.
Digital zoom enlarges noise along with the picture. Move closer instead.
Smudges soften the picture and tempt you to sharpen too much, which boosts noise.
Common problems, why they happen and how to fix them.
Why: The footage was severely underexposed, or the brightness slider is not high enough.
Fix: Raise Brightness further. If highlights clip, use the Contrast slider to recover them. For extreme cases, try rendering a short range to test.
Why: Lifting shadows amplifies the grain that was already in the footage.
Fix: Denoise first, then brighten. Or use the Low light preset, which is tuned to brighten and denoise together. Raise Temporal and Colour noise.
Why: Temporal is too high for the amount of motion in the clip.
Fix: Lower Temporal to 20 to 30 percent for handheld or action footage. Use higher values only on locked-off shots.
Why: Spatial noise reduction is too strong or Preserve detail is too low.
Fix: Lower Grain and noise, raise Preserve detail to 60 or more, and add 15 to 25 percent Sharpen.
Why: Large resolution, a long video, or a CPU-only device.
Fix: Render a short range, lower the resolution, turn on hardware acceleration, and close other tabs.
Why: The browser ran out of memory, or the encoder does not support the chosen resolution.
Fix: Choose a lower resolution, try the Compatibility engine, use a smaller range, or split the video into parts.
Why: The Include audio option was turned off, the source has no audio, or the browser has no AAC encoder.
Fix: Turn Include audio on. If your browser has no AAC encoder, the tool switches to the recorder engine, which records audio too.
Short definitions of the terms used on this page.
Answers to the 24 most common questions about brightening dark footage and removing night-time noise.
Drop your video into the tool, select the Low light preset, and adjust the Brightness slider. The tool will simultaneously remove the grain that becomes visible when you brighten the shadows.
Yes. There is no sign-up, no watermark and no daily limit. Everything runs on your own device, so there is no server cost to pass on to you.
No. Your video is processed in your browser. It is never sent to a server, making it safe for private, client, or security footage.
If you want a private tool with no install, no watermark and no upload, an in-browser tool like this one is a good choice. For long professional projects, desktop editors with GPU plugins are faster.
No. The tool runs in a modern web browser. Chrome and Edge give the fastest rendering, and Firefox and Safari are supported.
Anyone with dark or grainy video: creators shooting at night, students recording lectures in dim rooms, event videographers, and security personnel reviewing footage.
In low light, cameras increase their ISO (sensitivity), which introduces sensor noise. Brightening the video later makes this noise even more visible, so you must denoise it at the same time as you brighten it.
If you use too much noise reduction, yes. Keep the Preserve detail slider around 50-60% and add a small amount of Sharpen to maintain crispness.
It can reduce the darkness and clean up the noise, but very dark footage will still lose some detail, because the camera never captured that information in the first place.
It samples frames at native resolution, measures how noisy the footage is, and sets the noise, colour noise, temporal and sharpen sliders to match. You can fine-tune them afterwards.
Use the Low light preset, which applies them together. If you adjust manually, denoise first to remove the base grain, then raise brightness. This prevents the grain from being amplified.
Yes. The Audio noise tab learns the background noise from the quietest parts of your clip and removes it. It also has a low cut, a high cut, a hum filter and a volume control.
Raise the Low cut to between 100 and 200 Hz. It removes low rumble, wind and handling noise while keeping the voice clear.
Turn on Remove mains hum and choose 50 Hz or 60 Hz depending on your country. The filter removes the hum and its first harmonics.
MP4 (H.264), MOV, WebM and M4V work best, up to 1 GB. The result is exported as MP4 in Chrome and Edge, and as MP4 or WebM in other browsers.
No. The exported video has no watermark and no branding.
Brightening and noise reduction run on every frame, so time depends on resolution, length and your processor. A one minute 1080p clip commonly takes a few minutes on a modern PC.
Yes. In the render window, turn on Render only part of the video and enter From and To times in seconds.
No. Your video is opened, processed and rendered inside your browser. The file never leaves your computer, which makes the tool suitable for private, client and work footage.
Yes, because the video is not uploaded or stored by ToolDeck. Always follow your own organisation rules for handling confidential material.
No. Files exist only in your browser memory during the session. Closing or refreshing the tab clears them.
Chrome and Edge are best, because they support WebCodecs for fast rendering. Firefox and Safari work, and use the real-time recorder when WebCodecs is not available.
It works on modern phones and tablets for short clips. For long or 4K videos, a desktop or laptop is faster and more reliable.
For 1080p clips, 8 GB of RAM is usually enough. For 4K or files over 300 MB, 16 GB is recommended.