For recruiters, SDRs, finance & ops teams — anyone who gets files from strangers

Never open a stranger's
attachment again.
Preview it locally first.

Select a local PDF, DOCX, XLS/XLSX, CSV, supported image, or text/code file. Browser APIs read it locally — FileReader handles documents and data, while images use a browser-local object URL. The selected file's bytes never leave your browser, macros never execute, and nothing is uploaded. This build creates a local preview, not a hosted link.

Try unlimited local previews — free Hosted-link waitlist ↓
Unlimited browser-local previews · free · no account required
V
Built by Vlad Podolyako — from the lab behind the html-first playbook. I run Folderly (B2B email deliverability) and Belkins. One of a fresh wave of portfolio bets shipping May 2026. Free to try, replied personally.
Free preview · drop a file

Choose a file.
Watch it become a local preview.

Choose a local file below — or click a sample. We parse supported content in your browser without executing macros or embedded scripts. The selected file's bytes never leave the browser.

Supported today — PDF, DOCX, XLS/XLSX, CSV, common images, and text/code files, parsed locally without executing macros
◎ Choose a file · browser-local preview
The selected file's bytes never leave your browser; nothing uploads and macros do not run. Pick a sample to see the renderer.
⬆
Drag a file here
— or try a sample
PDF · Word · Excel · CSV · images — up to 25 MB
Parsing locally 
Drop a file above (or pick a sample) to see the safe preview.
◎ This is a local preview. Hosted share links and revocation are planned; join the free hosted-link waitlist below. This build does not upload files or create links.
Why bother

Three reasons it's safer than opening it.

0
File bytes uploaded to us
The file stays in a browser-only parser and is never uploaded. Supported content is re-rendered for preview; macros, embedded scripts, and auto-open payloads are never executed.
6
File families supported today
PDF, DOCX, XLS/XLSX, CSV, common images, and text/code files are rendered locally. Unsupported types receive a clear message instead of a risky fallback.
Next
Hosted links are planned
Hosted share links, branding, and revocation are roadmap items. They are not live in this browser-local build; access starts with a free waitlist.
How it works

Three moves. Zero uploads.

◎ STEP 01
Drop the file
Choose a file already on your device. PeekSafe reads it locally in the browser; the bytes never go to our server.
◎ STEP 02
We render it locally
Supported content is parsed without executing macros or embedded scripts, then re-rendered as a local preview.
◎ STEP 03
Peek, then decide
Review the local preview, then decide what to do with the original. This build does not create, store, or host a share link.
Access

Unlimited local previews. Hosted links are next.

Browser-local preview
Free
Unlimited browser-local previews, available now
  • PDF, DOCX, XLS/XLSX, CSV, images, and text/code
  • Unlimited previews in this browser
  • No account or browser counter
  • No file upload or macro execution
Try the local previewer — free
Hosted links · planned
Waitlist
Free interest list for a capability that is not live yet
  • Hosted share links are planned
  • Link revocation and branding planned
  • No promise of access date or shipped capability
  • Your local previewer remains free and unlimited
Join the free hosted-link waitlist
Straight up
FAQ

The honest answers.

How does a local preview reduce risk?

PeekSafe uses browser-local APIs: FileReader handles documents and data, while images use a local object URL. The selected file's bytes never leave your browser. The previewer does not execute macros, embedded scripts, or auto-open payloads; it re-renders supported content locally.

What file types do you support?

Today: PDF, DOCX, XLS/XLSX, CSV, common image formats, and text/code files. If a type is not supported, you see a clear message rather than a risky fallback. Additional formats are planned.

Do you store my files?

The selected local file is handled by browser-local APIs; its bytes never leave your browser, so PeekSafe does not upload or store it. Hosted links and revocation are planned, not capabilities in this build. The free hosted-link waitlist records only the form and privacy-safe acquisition fields.

What is live now, and what is on the roadmap?

Unlimited browser-local previews are live and free now. Hosted share links, revocation, and branding are planned but are not available in this build. Join the free hosted-link waitlist if you want updates about that capability.

Who is this actually for?

Anyone who gets files from people they don't fully trust: recruiters opening resumes, SDRs opening prospect decks, finance & ops teams opening vendor invoices. If "should I open this?" is a daily question, PeekSafe is the answer.

Stop playing attachment roulette.
Just peek first.

Keep using unlimited browser-local previews for free. Join this free hosted-link waitlist only if you want updates about planned hosted and revocable links.