The SharePoint storage cleaner that pays for itself
TerraBytes scans your SharePoint tenant, flags every duplicate, outdated, oversized and risky file, and shows exactly what they cost you, in euros and in CO₂. Reduce SharePoint storage in one scan, without deleting anything by accident.
Why SharePoint storage keeps filling up
If your SharePoint storage is full and Microsoft keeps nudging you to buy more, the problem is rarely that your team creates too much valuable content. It is that SharePoint quietly accumulates ROT data, redundant, obsolete and trivial files that sit in your tenant costing money and carbon without serving anyone.
By default, SharePoint keeps every version of every file, retains deleted items in two-stage recycle bins for up to 93 days, and never cleans up sites, media libraries or OneDrive accounts left behind by departed employees. Multiply that across a whole organization and a large share of your tenant is storage you are paying to keep, secure and back up, for no reason.
A dedicated SharePoint cleanup tool finds that waste for you. TerraBytes scans your sites, ranks the biggest wins, and hands you a clear action plan instead of a storage bill.
Every wasteful file, flagged
TerraBytes scans your SharePoint and OneDrive estate and surfaces the storage you can safely reclaim.
Duplicate files
The same document uploaded to three sites, "final_v2 (copy)", re-shared attachments: TerraBytes matches duplicates across your tenant and shows how much space collapsing them frees.
Runaway version history
SharePoint can store hundreds of versions of a single file. We flag libraries where version bloat, not real content, is eating your quota.
Outdated & orphaned data
Files untouched for years, sites with no owner, and OneDrive accounts from people who have left: classic ROT that is safe to archive or remove.
Oversized media & risk
Giant videos and design files, plus unencrypted or personal data that creates GDPR exposure. We flag both the cost and the compliance risk.
Most of it is waste you can reclaim
Around 52% of enterprise data is “dark data”: stored, powered and paid for, but never used. Source: Veritas Databerg
See your whole storage estate in minutes, not weeks of manual auditing.
Cost and carbon shown on every result, so you fix the biggest wins first.
Private by design: your data never leaves your environment.
Nothing is deleted automatically; you set the keep, archive and delete rules.
How the SharePoint cleanup works
1. Connect. Point TerraBytes at your Microsoft 365 tenant. It runs serverless and never moves your files.
2. Scan. One pass across your SharePoint sites, document libraries and OneDrive accounts flags duplicates, version bloat, ROT, oversized media and compliance risk.
3. Act. You get a prioritized action plan with the storage, euro and CO₂ impact of each item. Define rules to keep, archive or delete. You stay in control, nothing is removed automatically.
The result: a leaner tenant, a smaller Microsoft 365 storage bill, and a documented, defensible cleanup you can show to security, compliance and finance.
Clean up your whole storage estate
OneDrive cleanup →
Reclaim space from OneDrive accounts, including those left by former employees.
Storage cleaner & optimizer →
The same scan across cloud and on-prem: NAS and local drives.
GDPR & ROT data cleanup →
Find and remediate risky, personal and unencrypted files across your tenant.
The hidden cost of storage →
Why unused data quietly drives up both cost and carbon emissions.
SharePoint cleanup questions
Run a TerraBytes scan across your SharePoint sites. It flags duplicate files, old versions, oversized media, empty and orphaned sites, recycle-bin build-up and ROT data, then shows the storage, euro and CO₂ impact of each so you can clean up safely by priority.
No. TerraBytes flags and recommends. You decide what to keep, archive or delete using custom rules. Nothing is removed without your explicit action, so cleanup stays under your control.
Yes. TerraBytes runs serverless inside your own environment. Your data never leaves it, everything is encrypted in transit and at rest, and nothing is changed or deleted without your say-so.
SharePoint keeps every version of every file by default, retains deleted items in two-stage recycle bins, and accumulates duplicates, large media and content from departed employees. This ROT data can make up a large share of a tenant's storage without adding business value.