Free privacy tools
The Sealby Toolbox
Private tools that run in your browser. Check a photo, create a passphrase, seal a file, and plan recovery. Your data stays on this device unless a tool clearly tells you it needs the network.
Photos
What does your photo reveal?See the location, device and date data hidden in any photo. Nothing is uploaded.Works offlinePhoto trailSee the trail that hidden location data draws across your photos, on a map. Your photos never leave your device.Works offlineClean a photo before sharingCover faces or text with solid boxes and export a copy with the metadata removed.Works offlineWho can see this photo?See who has technical access to a photo, wherever it lives. Companies, people and jurisdictions, with sources.Works offlineMetadata stripperOne job: pick a photo, get it back without metadata. Lossless and verified.Works offlineHidden video checkSee whether a JPEG carries extra video-like data after the picture ends.Works offlineLive Photo converterTurn iPhone Live Photo MOVs into GIFs or stills in your browser. No upload.Works offlinePhoto metadata editorEdit photo dates, GPS and camera fields, or create a coherent fictional replacement profile. In your browser.Works offline
Locks & phrases
Encrypt a file in your browserAES-256-GCM with every parameter stated and the byte layout documented.Works offlineEncrypt private textWrite or paste a note, then encrypt it in your browser.Works offlineSeal a fileEncrypt with a one-time random key, so there is no passphrase to crack. Share the file and the key separately.Works offlinePassword protect a PDFAdd AES-256 PDF encryption in your browser. No upload.Works offlineRemove a PDF passwordUnlock with the password you already know — no guessing.Works offlinePassphrase generatorDiceware passphrases from the EFF large wordlist, drawn by your browser or by your own dice.Works offlineHas this password leaked?Check a password against known breaches. Only 5 hash characters leave your browser, never the password.Lookup needs the networkHow long would your PIN survive?How long a PIN survives three kinds of attack. Every assumption editable.Works offlinePassword setup health checkAudit how your password setup is built, never a password itself, and get fixes ranked by impact.Works offlineOpen a sealed fileSee the name, size and type, with a risky-file warning, before anything is saved.Works offline
Breach lookups need a connection. Photo Trail loads map tiles online, or shows a plain grid offline.
Crypto & wallets
Where do you keep your seed phrase?Four questions about where you keep it, never the phrase itself. See your two biggest risks.Works offlineBIP39 practice studioPractice with wallet-style 12- or 24-word phrases whose checksum is broken on purpose.Works offlineCrypto inheritance plannerCompare the honest handover options and print a plan. Details go on paper, not in the page.Works offlineRecovery-phrase trainerPractice writing down and restoring a recovery phrase, with a clearly watermarked dummy phrase.Works offlineClipboard hijack demoWatch an address swap happen to your own paste, with your consent. Then learn the defenses.Works offlineSpot the scamTwelve mock messages, scam or legit? Learn the tells, share your score.Works offline
Convert & optimize
Images
HEIC to JPG converterTurn iPhone HEIC photos into JPG or PNG. Batch, quality control, zip download. Nothing uploaded.Works offlineResize & compress imagesShrink photos by pixels or file size. JPEG, PNG, WebP and HEIC in, batch out. Nothing uploaded.Works offlineImages to PDFCombine JPG, PNG and HEIC photos into one PDF. Reorder, size and compress. Nothing uploaded.Works offlineWhich image format is smallest?Measures JPG, PNG and WebP on your actual image and recommends the smallest that keeps quality.Works offlineQR code generatorMake direct QR codes for links, Wi-Fi and contacts — no redirects, no upload.Works offlineQR code readerPick a QR code image and read its real link, Wi-Fi or contact. Risky parts are flagged, and nothing opens on its own.Works offline
PDF toolkit
Merge PDFsCombine PDFs in your chosen order, in your browser.Works offlineSplit a PDFSave selected pages as separate PDF files.Works offlineExtract PDF pagesMake a new PDF from the pages you need.Works offlineDelete PDF pagesMake a new copy without selected pages.Works offlineReorder PDF pagesPut PDF pages in the order you choose.Works offlineRotate PDF pagesFix sideways PDF pages without turning them into images.Works offlineAdd PDF page numbersNumber selected PDF pages in a new copy.Works offlineCompress a PDFMake a smaller PDF in your browser, with the trade-off shown.Works offlinePDF to imagesSave PDF pages as PNG or JPG images in your browser.Works offlinePDF metadata removerSee and remove hidden names, software and document details in your browser.Works offline
Your situation
How deniable is your setup?Nine questions, three honest scores, concrete next steps.Works offlineThe 5-minute iPhone check-upThe fifteen iOS settings that matter, with exact paths.Works offlineIf you lost your phone right nowWhich accounts would lock you out, ranked, with one fix each.Works offlineDigital legacy plannerA printable plan for private things. Blanks for a pen, no details asked.Works offlineFamily code word kitChoose a memorable code word and print the callback rule for urgent impersonation calls.Works offlineVital documents checklistTrack the 20 documents that matter and whether each needs paper, an encrypted copy, or both.Works offlineClean a linkRemove the parts that track you from a pasted link, in your browser, with every change shown.Works offline
Install the toolbox
Installed. Offline access depends on resources already saved in this browser.
Why these work offline
Your files are processed in this browser, not uploaded. Some functions need an initial library download. For offline use, first open and try the tools you need online. Then test without a connection; browsers can clear saved data. Breach lookups need a connection. Photo Trail loads map tiles online, or shows a plain grid offline.
What installing does (and doesn’t)
Installation adds a shortcut. It does not download every tool. For offline use, first open and try the tools you need online. Then test without a connection; browsers can clear saved data.
The toolbox is the philosophy. Sealby is the vault.
Every tool here runs on your device, because that is where private things belong. Sealby applies the same rule to your photos and files: encrypted on your phone, and backed up only as encrypted data no one can read.
Download on the App Store
iPhone & iPad · iOS 17+ · Free