nimbril
12 file tools that never upload
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What is nimbril?
Nimbril is a suite of 12 fast, private web apps that run entirely on your device. Each tool in the suite performs a specific task—such as removing image backgrounds, trimming video, signing PDFs, or encrypting files—without uploading your data to any server. The suite emphasizes on-device processing using WebGPU and WebAssembly, ensuring your files stay private and never leave your machine.
Key features include on-device AI for background removal (Lift), video/audio trimming (Trim), PDF signing (Sign), image compression (Squash), QR code generation (QR), metadata scrubbing (Meta), file encryption (Encrypt), HEIC to JPG conversion (Convert), sensitive area redaction (Redact), passport/ID photo creation (Portrait), voice analysis (Poise), and screenshot framing (Frame). All tools work offline—you can even enable airplane mode and they continue functioning. Batch processing is available for multiple images, exporting as ZIP files.
Nimbril is designed for professionals who handle sensitive data: solo lawyers and paralegals prepping client exhibits, e-commerce sellers building product catalogs, HR and recruiting teams standardizing headshots, job seekers making profile photos, and anyone working under NDA, HIPAA, or confidentiality duties. The on-device architecture ensures compliance with data privacy requirements since images and files are never uploaded, stored, or used for training.
nimbril pricing
Pricing model: Freemium
Free tier available with no signup to try. Pro plan: $9/mo or $69/yr unlocks full-resolution exports, batch processing with ZIP, no watermark, and unlimited history across every nimbril tool. Single-app plan: $4/mo for one specific app. Suite Pass available for all 12 apps.
nimbril pros
- Runs entirely on your device—nothing uploaded
- Works offline with airplane mode
- No signup required to try free tier
- On-device AI using WebGPU and WebAssembly
- Batch processing with ZIP export
- Transparent PNG output for background removal
- Studio backdrops and shadow options available
- Crop presets for Amazon, Etsy, Instagram, Poshmark, Depop
- AES-256 encryption for file locking
- PERMANENT black out for redaction
- HEIC to JPG conversion on-device
- Metadata scrubbing removes hidden tags
- PDF signing entirely on your device
- Voice analysis counts filler words and speed
- 12 different apps in one suite
nimbril cons
- First cutout slower due to model download
- Phone usage can be slower than desktop
- Older hardware falls back to WASM (slower)
- Low-contrast subjects get less certain cutouts
- Busy backgrounds reduce AI cutout quality
- Pro required for full-resolution exports
- Batch processing requires Pro subscription
- History unlimited only with Pro
Frequently asked questions about nimbril
Are my images uploaded to a server?
No. All nimbril tools run entirely on your device—the AI runs in your browser, so your photos are never uploaded, stored, or used for training. You can confirm this by turning on airplane mode: the tools still work with no connection.
Is it free? What does it cost?
Yes, there's a generous free tier you can use with no signup. Pro ($9/mo or $69/yr) unlocks full-resolution exports, batch processing with ZIP, no watermark, and unlimited history across every nimbril tool. A single-app plan is $4/mo.
Does it output a transparent PNG?
Yes. Lift cuts the subject out and exports a clean PNG with a transparent background, ready to drop into a deck, store listing, or design. You can also swap in a studio backdrop, add a shadow, or crop before exporting.
Can I remove backgrounds from many images at once?
Yes. Batch processing lets you cut out a whole set of images in one pass and download them together as a ZIP—handy for product catalogs, team headshots, or ID photo sets. This feature requires Pro.
How good is the cutout on hair and fine edges?
Lift uses an AI model to trace the subject's edges, including tricky areas like hair and wisps. It runs on WebGPU when your device supports it for speed, falling back to WASM so it still works on older hardware.
What backdrops and crops can I apply after removing the background?
Beyond a transparent PNG, you can drop the subject onto solid colors, soft studio gradients (white, grey, warm and cool glows, charcoal), or a sunset gradient, and add a shadow. Crop presets include 1:1 for Amazon/Etsy, 4:5 for Instagram, 3:4 for Poshmark/Depop, 9:16 for stories, and 16:9 for banners.
Why is the first cutout slower than the rest?
The first time you use Lift, your browser downloads the AI model so it can run on your device. That one-time download is what makes every later cutout fast and fully offline. The model is cached afterward, so repeat use and batch jobs start right away with no network.
Will it work on my phone or an older laptop?
Yes. Lift uses WebGPU for speed when your device supports it and falls back to a WebAssembly path on other hardware so it still works. It runs best on a desktop or laptop; on a phone it still works but can be slower, especially on the first run while the model downloads.
Which AI model does Lift use?
Lift runs an open AI segmentation model locally in your browser. It produces a soft per-pixel mask that handles hair and fine edges well on a clear single subject. The trade-off versus upload-based services is privacy: the cutout happens on your device instead of on a remote server.
What file formats are supported?
JPG, PNG, and WebP all work for image tools. The tools support various image formats including HEIC for conversion to JPG. Files load into your browser and go no further—never uploaded to any server.