How to Share WAV, FLAC and Multitrack Stems Without Losing Quality

When you send a WAV, FLAC, or multitrack stem, treat it as a downloadable file rather than an in-chat audio preview. ShareIt.onl provides a browser-based delivery workflow, while clear naming, ZIP packaging, and checksum verification help the recipient confirm that the downloaded archive matches what you sent.

The Core Workflow for Lossless Stem Delivery

1. Consolidate and Name Your Stems

Before you upload anything, standardize your file names. Include the sample rate, bit depth, and track role in the filename. For example: SongTitle_Kick_48k24.wav or SongTitle_Master_96k24_FLAC.flac. This prevents confusion when the recipient opens the session. Do not rely on folder names alone; filenames survive extraction.

2. Include a Session Notes File

Create a plain-text README.txt or SessionNotes.txt inside the folder. List the project tempo, time signature, key, and any mix notes (e.g., "Vocal stem has +2 dB at 3 kHz"). Also note the exact sample rate and bit depth used. This file travels with the stems and eliminates back-and-forth questions.

3. ZIP the Folder

Package the consolidated folder as a single ZIP archive. ZIP does not apply lossy audio encoding and keeps the folder contents together. A single ZIP also counts as one file toward the 100-file limit, though it must still fit within the 3 GB total limit.

4. Upload to ShareIt.onl

Open ShareIt Online in your browser. No app or sign-up is required for a basic share. Drag your ZIP file onto the upload area. Each share can contain up to 100 files and a total of 3 GB. If your ZIP exceeds 3 GB, split the stems into logical groups (e.g., drums, vocals, instruments) and create separate shares.

5. Set Link Expiry and Controls

After the upload finishes, ShareIt.onl provides a web link and a QR code. Choose one of the available expiry periods. For sensitive masters, consider password protection or a one-time link. The recipient downloads the ZIP in a browser without an app or account.

6. Verify the Checksum

Before the recipient imports the stems, they should verify the file integrity. Generate a checksum (MD5 or SHA-256) on your machine and share it via a separate channel (e.g., a text message or email). The recipient runs the same checksum on the downloaded ZIP. If the values match, the file is bit-perfect. If they differ, the file was corrupted in transit or transcoded by an intermediate service.

Avoiding Common Mistakes

Do Not Rely on an Audio Preview

Messaging products can treat an audio preview differently from a file attachment, and behavior changes by app and sending mode. For production stems, send a ZIP archive as a file and verify the downloaded checksum rather than assuming a preview preserved every byte.

Watch the 3 GB Ceiling

ShareIt.onl's free share limit is 3 GB per share. If your session export exceeds this, split the stems into multiple ZIPs. Label them clearly: SongTitle_Stems_Part1.zip, SongTitle_Stems_Part2.zip. Upload each as a separate share and send all links to the recipient.

Do Not Rely on Cloud Drive Sync for Collaboration

Google Drive, Dropbox, and OneDrive are cloud-storage options, while ShareIt.onl is useful for a direct browser handoff. Test the chosen link and its access settings before sending deadline-sensitive stems.

Verify Before Importing

Even with a reliable service, network errors can corrupt a file. Always run the checksum verification before importing stems into your DAW. A single corrupted sample can cause clicks, pops, or a session that refuses to load.

When You Need a Persistent Inbox

If you regularly receive stems from multiple collaborators, use ShareIt.onl's Request Files feature. You create an inbox link and share it. Each contributor uploads their stems (up to 100 files/3 GB per delivery) without needing an account. Inbox links last 7 or 30 days, and received files are kept for 7 days. Each time you download a file, the retention extends by 24 hours. This is ideal for collecting session exports from session musicians or remote engineers.

For Ongoing Collaboration: Group Chat

If you are working on a project with a small team and need to share stems repeatedly, consider ShareIt.onl's Group Chat. It is invitation-only, and all members must sign in with a Google-connected account. Within a group chat, you can attach active, reusable ShareIt links to your stems. The message text, filenames, and new chat attachment copies are encrypted and decrypted in members' browsers using AES-256-GCM. ShareIt stores only ciphertext for synchronization and cannot read the content. Note that the original files in your My Files remain separate and retain their normal ShareIt controls. Group Chat is plain text with no calls, threads, or push notifications—it is a focused tool for exchanging links and brief notes.

Final Advice

The most important step comes before uploading: name files clearly, include session notes, and ZIP the folder. ShareIt.onl handles the browser delivery, while a checksum gives both parties a concrete way to verify the downloaded archive before importing it into a DAW.