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Free online file converter.
No upload, no signup.

Convert files free, right in your browser. PDF, image, video, calculator, writing and file utilities run entirely on your device, so nothing ever touches a server.

267
tools
0
uploads
$0
cost
flagship tool - fully built, not a demo
Text, signatures, highlights, stamps, sticky notes and links - saved directly into your PDF, plus page delete/rotate and full undo/redo.
Open the PDF Editor →
100% private, nothing uploads
Instant, no queue or wait
Free, no limits or paywall
No account required
BROWSE_BY_CATEGORY

Every tool, organized by what it does

PDF
36 tools
Merge, split, compress, convert
Image
59 tools
Resize, compress, convert formats
Video
18 tools
Compress, trim and convert video
AI Writing
1 tool
Placeholder and filler text
File Conversion
47 tools
Excel, CSV, JSON and XML
Other
22 tools
Word count, legal docs, games
Calculator
39 tools
Loans, time zones, everyday math
Write
19 tools
Text to speech and transcription
Business
26 tools
Estimates, stock and pricing
Developer Tools
23 tools
JSON, regex, Base64 and UUID
HOW_IT_WORKS

How to convert files online in 3 steps

  1. Choose a tool.

    Pick the category you need (PDF, image, video or data files), then the conversion you want.

  2. Drop your file.

    It opens inside your browser tab, so it is never uploaded anywhere.

  3. Download the result.

    Save the converted file straight to your device. No account, no waiting.

Start converting freeBrowse all 267 tools →
WHY_SLAYTIC

Built different from most "free" tool sites

Typical "free" tool sites
Slaytic Converter
Uploads your files to their server first

Your file leaves your device before you ever see a result, with no way to know what happens to it once it is there.

Nothing ever uploads

Every tool runs as client-side JavaScript and WebAssembly. Your files are processed on your own hardware, never sent to a server.

Free tier caps, then a paywall

A handful of free conversions, then a subscription prompt or a feature locked behind a paywall.

Actually free, no limits

No subscriptions, no per-file caps, no watermark holdbacks. All 267 tools are free to use as much as you need.

Upload wait, then a processing queue

Your file has to travel to a server and back, then wait in line behind everyone else’s files.

Fast, because it is local

No round trip to a server means no upload wait and no queue: results appear as soon as your browser finishes processing.

Sign up with an email before you start

An account, a verification email, sometimes a credit card, before you can even try the tool.

No account required

Open a tool and start working immediately. No email, no sign-up, no password to remember.

WHO_ITS_FOR

Built for the everyday paperwork of running independently

Slaytic Converter started as a way to handle client files without routing them through a third-party server. It's grown into a full toolkit for the small, recurring tasks that eat up time between the actual work.

Freelancers & agencies

Merge client deliverables, sign contracts, and compress final assets before handoff, all without a client file ever touching a third-party server.

Popular for thisSign PDF Merge PDF Compress PDF Edit PDF PDF to Word Watermark PDF

Freelancers & agencies

Merge client deliverables, sign contracts, and compress final assets before handoff, all without a client file ever touching a third-party server.

Popular for thisSign PDF Merge PDF Compress PDF Edit PDF PDF to Word Watermark PDF

Students & educators

Convert assignments between formats, extract text for citations, and combine handouts into a single reading packet for class.

Popular for thisMerge PDF HEIC to JPG Word Counter OCR (Extract Text) PDF to PPT Flashcard App

Small business teams

Protect invoices with a password, watermark shared documents, and keep bulk file cleanup off the IT team’s plate entirely.

Popular for thisProtect PDF NDA Generator Privacy Policy Generator Watermark PDF Bill of Sale Generator Purchase Agreement Generator

Developers

Format and validate JSON, test regex patterns, and generate UUIDs, without pasting anything into a third-party site.

Popular for thisJSON Formatter Regex Tester UUID Generator

Content creators

Trim clips, compress video to fit upload limits, and convert formats before publishing, all processed locally in your browser.

Popular for thisTrim Video Video Compressor HEIC to JPG

Everyday use

Quick calculators and utilities for the small stuff: split a bill, check a BMI, or count words in a draft, no app to download.

Popular for thisTip Calculator BMI Calculator Word Counter
COMPATIBILITY

Works in any modern browser, on any device

Every tool runs on standard web APIs available in Chrome, Firefox, Safari and Edge, on desktop or mobile. There's nothing to install: the toolkit works the same on a work laptop as it does on a phone during a commute.

Supported formats: PDF, JPG, PNG, WebP, HEIC, MP4, MOV, WebM, DOCX, XLSX, PPTX, CSV, TXT, ZIP.

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QUESTIONS

Before you dive in

Do my files get uploaded anywhere?−
No. Every tool processes your file with JavaScript running inside your own browser tab. Nothing is sent to a server, so there is nothing to wait on and nothing stored remotely.
Do you store any data or track me?+
Your files: never. We use cookie-free Plausible analytics to see aggregate traffic (page views, not individuals - no cross-site tracking). If you accept the cookie banner, Google AdSense may also set cookies to show ads; you can decline that at any time and still use every tool. Nothing about the files you process is ever logged, stored, or transmitted.
Is Slaytic Converter really free, forever?+
Yes. There is no trial, no paywall, and no watermark on your files. Because your own browser does the processing instead of our servers, there is no per-file cost to us that would force a future paywall - that is what makes offering everything free indefinitely sustainable.
Do I need to create an account?+
No account needed for any tool. Open a tool and start working immediately.
Which tool categories are available?+
267 tools across nine categories: PDF, image, video, file conversion (including a developer tools collection), calculators, business, writing, a Lorem Ipsum generator, and other everyday utilities. All are free and run in your browser.
Is there a file size limit?+
No hard cap, but since processing happens on your device, very large files may run more slowly depending on your computer's memory.
Which file types are supported?+
PDF, JPG, PNG, WebP, MP4, WebM, DOCX, XLSX, PPTX, CSV, TXT and more, depending on the tool.
How do I convert a file online for free?+
Open the tool for your file type, drop the file into the page, and download the result. Everything runs in your browser, so there is no upload and no account.
Is there an online file converter that does not upload my files?+
Yes. Slaytic Converter processes files with JavaScript and WebAssembly inside your own browser tab, so your files are never sent to a server.
Can I use these tools on mobile?+
Yes, every tool works in a mobile browser, though performance depends on your device.

Get started

267+ tools, one click away.

Search, browse by category, or jump straight into a tool. No sign-up, ever.

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