Beautiful work.Without the typos.
The free English spell checker that sees inside your images, PDFs and designs. Find the typo. See exactly where it lives.
Drop your work here
Images, PDFs & Office files · Up to 25 MB
Highlighted on your artwork
Select an issue to find it on your design.
Make the change in your original file.
Highlighted on your artwork
Select an issue to find it on your design.
Make the change in your original file.
Complete Visual Pre-Flight & Copy Tooling
Crafted for marketing teams, art directors, graphic designers, and founders who cannot afford embarrassing errors in client-facing work.
3D Digital Flipbook Maker
Convert PDFs and images into realistic, page-turning 3D digital flipbooks with 13 display styles, 12 authentic hardcover editions, acoustic sound effects, and zero install. Don’t just send a PDF — send an experience.
Scanned PDF & Visual OCR
Extracts and maps text tokens from multi-page PDFs, Word documents, PowerPoint slides, and flattened raster graphics with pinpoint bounding boxes.
Image Compressor & Optimizer
Compress JPG, PNG, WebP & multi-page PDF catalogs with live Squoosh-style split comparison. 100% private in-browser compression.
Image to Text Converter
Extract clean, copyable text from screenshots, photos, and scanned PDFs instantly with free online OCR.
US ⇄ UK Dialect Switcher
Convert marketing copy, articles, and pitches between American and British English conventions with contextual vocabulary intelligence.
Smart Case Converter
Format headings and text effortlessly into AP/Chicago Title Case, Sentence case, camelCase, UPPERCASE, or URL slugs.
Zero-Storage In-Memory RAM
Your files never touch permanent disk. Content is inspected purely in volatile server memory and instantly cleared. No telemetry, no logs, zero AI training.
AI Design Pre-Flight Check
Upload social flyers, pitch decks, banners, or UI designs. Our AI evaluates optical balance, font pairings, contrast ratios, breathing room, and visual clutter with actionable designer feedback.
QR Code Generator with Scannability Scoring
Generate high-resolution vector SVG and PNG QR codes for URLs, WiFi, text & contacts with built-in camera scannability verification before you send to print.
Why standard spell checkers fail on visual media
Traditional checkers only inspect plain text fields. In creative workflows, text gets flattened into pixels, canvas layers, and complex vectors.
- ✕Blind to raster graphics: Cannot read PNG, JPG, or WebP social graphics exported from Figma or Canva.
- ✕Fails on flattened PDFs: Inability to OCR text inside multi-page presentation decks, menus, and scanned contracts.
- ✕Zero visual context: No understanding of hierarchy, font pairing clashes, contrast ratios, or optical spacing.
- ✕Manual retyping friction: Forces creators to copy and paste text back and forth, breaking layouts.
- ✓High-Precision Visual OCR: Direct optical extraction from bitmap pixels and complex vector layers.
- ✓Interactive Canvas Overlay: Red bounding boxes highlight the exact position of typos directly on the artwork.
- ✓Dual-Engine Accuracy: Instant Hunspell local dictionary plus optional Gemini AI contextual reasoning.
- ✓Strict Zero-Storage Privacy: 100% in-memory processing. Your proprietary graphics and contracts are never stored.
How Spellense works in 3 easy steps
Drop your visual asset
Upload any image (PNG, JPG, WebP), presentation slide (PPTX), document (DOCX, PDF), or spreadsheet. Or paste text directly.
Dual-Engine Analysis
Optical Character Recognition reads words off pixels, matching against 100,000+ words with regional US/UK dialect settings.
Inspect & Fix on Canvas
Review bounding boxes over your artwork, accept one-click suggestions, whitelist custom terms, and export your corrected copy.
Guides for flaw-free visual communication
Everything you need to know about Spellense
Quick answers about our in-memory OCR proofreading, supported formats, and privacy policies.
How does Spellense detect spelling mistakes in images and visual designs?
Spellense applies high-precision Optical Character Recognition (OCR) to detect readable text inside raster graphics (PNG, JPG, WebP) and scanned PDF pages. Each word token is verified against comprehensive English dictionaries, and suspected typos are highlighted with red bounding boxes drawn directly over your original artwork.
Are my uploaded files, contracts, or presentations saved on your server?
No. Spellense operates on a strict zero-storage, in-memory architecture. Files are processed ephemerally in RAM exclusively for OCR analysis and dictionary checking, then discarded immediately after results are returned. Files are never stored on disk or used to train artificial intelligence models.
Which document formats and file sizes are supported?
Spellense supports PNG, JPG, JPEG, and WebP images, native and scanned multi-page PDF documents, Microsoft Word (DOCX), PowerPoint (PPTX) slide decks, and Excel (XLSX) workbooks up to 25 MB per file.
Can I check spelling on Canva designs, flyers, or slides before publishing?
Yes. Download your design from Canva, Photoshop, or Figma as a PNG, JPG, or PDF and drop it directly into Spellense. Our OCR engine highlights suspected typos with visual bounding boxes on top of your artwork. For a step-by-step tutorial, read our guide: How to Check Spelling in Canva Designs Before Publishing.
Does Spellense support both American and British English spelling?
Yes. You can switch effortlessly between American English (en-US) and British English (en-GB) dictionaries to ensure accurate suggestions for regional variations like color/colour, organize/organise, and center/centre. You can also use our dedicated US ⇄ UK Dialect Converter to adapt entire articles or marketing campaigns instantly.
Is Spellense completely free to use?
Yes, Spellense is 100% free with no account creation, no subscriptions, and no paywalls. All features including OCR inspection and case converters are immediately available.