About AeroSigil
The fastest, simplest way to transfer text, code, notes, and files across any device — completely free, account-free, and private by design.
The Problem We Set Out to Solve
Every developer, student, and creator knows the daily struggle of simple cross-device handoffs. You're sitting at a university computer lab, an office workstation, or a friend's PC, and you just need to move a few lines of code, an API key, a command-line script, or a PDF file to your phone or laptop.
Until now, the available options were frustratingly broken:
Logging Into Personal Accounts
Opening Gmail, WhatsApp Web, or Discord on public lab computers creates severe security vulnerabilities, often leaving active sessions behind on shared machines.
Physical USB Drives
Plugging physical flash drives into communal computers spreads malware, requires dongles on modern laptops, and is slow for quick text snippets.
Cloud Drives (Drive, Dropbox)
Requires account logins, navigating complex sharing permission dialogs ("Anyone with the link"), creates perpetual clutter, and burns personal storage quotas.
Outdated Pastebin Tools
Legacy tools are infested with intrusive ads, broken mobile interfaces, lack file attachments, and lock essential password protections behind paid monthly subscriptions.
We built AeroSigil to fix this entirely: paste your content, attach your files, assign a memorable ID, and retrieve it on any browser on earth in 2 seconds flat.
How It Works — Step by Step
Designed from the ground up to be frictionless, transparent, and immediate.
Paste Text & Attach Files
Paste raw notes, formatted markdown, or code scripts. Attach up to 10 files (5MB each) in any format — images, PDFs, documents, or zip archives.
Choose a Human-Friendly ID
Assign a clean, semantic ID like lab-assignment-4 instead of random unreadable hashes.
View & Edit Passwords
Set a View Password to lock reading, or an Edit Password to prevent unauthorized overwrites or deletions. Both are hashed client-side with SHA-256.
Instant Cross-Device Access
Select your auto-delete duration (1 min to 30 days). Open the Drop ID on any device to view, copy, or batch-download everything.
Our Five Core Principles
What guides our design and technical choices every single day.
1. Zero Login Friction
We believe the web is at its best when utilities work immediately without barriers. You don’t need an account, password manager, or email confirmation to share a piece of text. AeroSigil is always ready when you need it.
2. Ephemeral by Design
Data hoarding is bad for user privacy and bad for the web. AeroSigil automatically deletes drops and associated physical files from cloud storage once their timer expires. When it's gone, it's permanently and irreversibly gone.
3. Cryptographic Client-Side Security
When you set a View Password or Edit Password, your password is cryptographically hashed with SHA-256 in your browser before transmission. We never store, transmit, or see your plaintext password.
4. Clean, Responsive Modern UI
Unlike older utilities that look like relics from 2008, AeroSigil provides a fast, modern React interface with dark/light themes, keyboard shortcuts, paste utilities, and optimized mobile layouts.
5. 100% Free Core Features Forever
We don't believe in locking essential security features or longer storage durations behind paywalls. All expiry times, all file attachments, and dual password controls are 100% free for everyone.
Technical Architecture
Built on a modern, high-performance web stack for ultra-low latency and maximum reliability.
Frontend & Edge Router
Built with React, TypeScript, and TanStack Router. Features client-side cache pre-fetching and responsive Tailwind CSS layout engines.
Database & Hashing
High-throughput PostgreSQL with client-side SHA-256 password hashing and automated indexing for instant sub-50ms lookup times.
Cloud Storage & Purge Engine
Encrypted object storage buckets with automated serverless lifecycle purging workers that permanently delete expired files.
Everyday Use Cases
How students, programmers, educators, and creators use AeroSigil every day.
College & University Labs
Students and batchmates agree on a Drop ID (e.g. cse-lab-week3) and upload lab solutions, code files, and PDFs once for the whole group to copy — without logging into personal email on public PCs.
Developers & DevOps
Share rough code snippets, curl commands, JSON payloads, or stack traces with teammates without creating git branches or polluting messaging channels.
Classrooms & Live Workshops
Teachers, professors, and tech speakers write a single Drop ID on the whiteboard or projector. The entire room opens the notes, slides, and starter code instantly on their phones.
Cross-Device Universal Clipboard
Quickly hand off an address, phone number, image, or link from your iPhone to a Windows PC or Linux machine without cables, Bluetooth pairing, or cloud synchronization apps.
Beyond Text: MediaKit, TruShare & In-Browser Compression
Addressing the creative compromises of messaging networks and unsecure online tools.
As AeroSigil grew, we recognized another massive pain point in everyday digital workflows: messaging services like WhatsApp, Telegram, and Discord aggressively compress and downscale high-resolution media — stripping camera RAW metadata, ruining ICC color profiles, and crushing 15MB photos into muddy 300KB JPEGs.
Simultaneously, commercial “free” online PDF and image compression websites require users to upload confidential resumes, business contracts, and spreadsheets to unknown remote servers with invasive tracking cookies, queue delays, and paywalls.
Bit-for-Bit Lossless Sharing
Upload up to 20MB per file with zero compression and zero transcoding. Supports SHA-256 view and edit passwords and guarantees an automatic cloud purge capped at 3 days maximum.
100% In-Browser Privacy
Compress documents, multi-page PDFs, Word, PowerPoint, and photography by up to 85% directly inside your browser memory using WebAssembly. Zero bytes leave your device.
Our Privacy & Trust Pledge
We built AeroSigil on a foundation of user respect. We do not track you, we do not require your identity, and we do not monetize your personal information:
- Zero Tracking Cookies: We do not use intrusive cross-site tracking cookies or advertising pixels.
- Zero Personal Profiling: We do not log your identity, device fingerprints, or build marketing profiles.
- 100% User Ownership: You retain full ownership of all text and files you share. We never inspect or sell user content.
- Irreversible Deletion: Once a drop expires or is manually deleted, all records and storage assets are permanently purged.
Free, Fast & Built for the Web
AeroSigil is crafted to keep file and text sharing simple, private, and effortless. Try it now — no account required.