UI v2.1 · 280 free tools

280 free in-browser tools.Your files stay on your device.

Merge and split PDFs, remove backgrounds, compress photos, format code, and generate assets in your browser. Most tools never upload your files, and many keep working offline once loaded. A few downloaders fetch public links through our server.

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Runs in your browser No account needed WebAssembly engines Installable app

Instant In-Browser Playground

Text or Website URL

280

Free utilities

File uploads (local tools)

Accounts needed

No cap

Daily use (device limits apply)

Jump by category

All 280

Popular tools

Everyday converters, generators, and calculators — ready in one tap.

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PDF to WordExtract readable text from a PDF into an editable Word (.docx) file.Word to PDFConvert DOCX to PDF in your browser — layout may change on complex documents.JPG to PDFCombine one or many images into a single PDF.Merge PDFJoin multiple PDFs into one document, in any order.PNG to JPGConvert PNG images to JPG with a white or custom background.MP4 to MP3Extract MP3 audio from MP4, MOV, and WebM videos in your browser.Background removerCut the subject out of a photo with an on-device AI model.Image compressorShrink image file size with a live quality preview.Instagram downloaderSave public Instagram Reels, posts, and photos you have the right to keep.

Browse all 280 tools

Workflow suites

Bundles for documents, creators, and developers.

Document Hub

Merge, split, compress, and convert PDFs locally.

Merge PDF Split PDF Rotate PDF Word to PDF PDF to PNG

Creator Studio

Background cutouts, compression, and formats.

Background remover Image compressor JPG to PDF QR code generator

Developer Toolkit

JSON, JWT, diff, checksums, and Base64.

JSON formatter Diff checker JWT decoder Base64 encoder Hash generator

PWA & native share

Share from other apps into Omnipus.

On Android (and some desktop browsers), install the app, then use Share → Omnipus from Instagram, X, TikTok, Reddit, YouTube, or your gallery — no copy-paste. iPhone and iPad don’t support sharing into web apps yet, so paste the link there instead.

Enable in seconds

Install via Add to Home Screen / Install App
Share a post or reel from another app
Pick Omnipus — tools open with the file/URL

Hard to find elsewhere

Niche utilities — Discord timestamps, resistor codes, and more.

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Discord timestampBuild a Discord <t:unix:F> timestamp the client will render.Zalgo textGlitch a sentence with combining marks.Resistor color codeRead a 4-band resistor from band colors.Secret SantaShuffle a derangement so nobody draws themselves.Minecraft color codesPreview &0–&f and &l/&o/&n formatting.Dog age calculatorEstimate dog years to human years with size-aware curves — for curiosity, not medical advice.Cat age calculatorEstimate cat years as human-age equivalents with indoor/outdoor curves — general info only.Pet food & plant safety checkerSearch 150+ foods, plants, and household items for dog and cat safety status — general reference only, not a veterinary diagnosis.UUID v7Time-ordered UUIDs that still look random.Keyboard testerSee the key, code, and modifiers as you type.Sleep cycle calculatorWake at the end of a 90-minute cycle.chmod calculatorToggle rwx for user, group, other. Get octal and a command.IPv4 subnetExpand a CIDR into network, broadcast, and host count.MetronomeClick a tempo from 40–240 BPM in this tab.

Browse by category

PDF toolsMerge, split, compress, and convert PDFs without an account.Image toolsCompress, convert, crop, and remove backgrounds in the browser.Video & audioExtract MP3s, trim clips, and convert audio on your device.DownloadersSave public Reels, TikToks, posts, and thumbnails you have rights to.Text & codeFormat JSON, count words, hash strings, and test regular expressions.CalculatorsEMI, BMI, percentages, units, currency, and compound interest.GeneratorsQR codes, passwords, invoices, meta tags, and CSS gradients.

Why Omnipus

Many converters quietly upload your files to the cloud. Omnipus runs its PDF, image, audio, and code tools with WebAssembly, Canvas, and Workers inside your browser. The exceptions — downloaders and a couple of lookups — are labeled on each tool page.

UI v2.1 is mobile-first: denser catalogs, sticky tool chrome, clearer results, and ad placements that stay labeled and away from primary actions.

No accounts. No subscriptions. Labeled Adsterra ads keep it free. If a tool is missing, let us know.