
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OCRMD records 0 monthly visits with 0% month-over-month growth and Freemium pricing. Sider records 2,644,740 monthly visits with -10.6% growth and Freemium pricing.

Turn scans and PDFs into editable, searchable Markdown

Turn scans and PDFs into editable, searchable Markdown
The free tools run on WebAssembly inside your browser so receipts, medical records and financial documents never leave your machine.
The premium cloud model reads inline and block math and converts it to LaTeX syntax, which matters for research papers and textbooks.
Table borders and multi-column reading flow are preserved, and charts and illustrations are pulled out as separate image files.
Uploads and results are stored in an account so you can organise and run full-text search across your converted documents later.
AI sidebar and browser agent for reading, writing and research
A persistent panel that reads the page you are on and answers follow-ups with GPT, Claude or Gemini without copying content into another tab.
Summarise long articles, PDFs and YouTube videos, extract key points, and ask detailed questions about the source material.
Translate webpages, PDFs and images, compare bilingual output side by side, and have content read aloud for review on the move.
Delegate multi-step tasks across real websites — price comparison, form filling, research and inbox triage — using your existing logged-in sessions.

SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Free online OCR that turns any image into editable text in seconds
Free online OCR that turns any image into editable text in seconds

Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
Offers a very similar browser sidebar experience with multiple AI models, but features slightly different pricing and workspace tools.
A free, AI-powered PDF editor for every device
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
Provides robust browser-based summarization and prompt assistance, but lacks some of Sider's deeply integrated multi-model chat UI features.
SpecialistExtract editable text from images, scans and handwriting with OCR
SpecialistExtract editable text from images, scans and handwriting with OCR
Excels at advanced web automation and data extraction alongside chat, but has a steeper learning curve than Sider.
Free online OCR that turns JPG, PNG and scanned images into editable text
Free online OCR that turns JPG, PNG and scanned images into editable text

Free online OCR that turns images and scans into editable text
Free online OCR that turns images and scans into editable text
AI document conversion for math, chemistry, tables and full PDFs
AI document conversion for math, chemistry, tables and full PDFs

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser