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A free browser-based image/PDF format converter (PNG/JPG/PDF) with no size limits, watermarks, or paywalls, instead of converters that lure users in then charge.
FreeNo sign-up
What to know▼
How it works
Convert PNG to JPG, JPG to PNG, PDF to PNG/JPG, drag and drop, no signup
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Runs 50 ISO/ASME engineering calculators (gears, bearings, bolts, shafts, vessels, welds) in the browser with formulas, worked examples, and exportable branded PDF reports, for engineers instead of $10k desktop software like KISSsoft or MITCalc.
No sign-upNothing to install
What to know▼
How it works
Each of the 50 tools cites its governing standard, shows the formula and a worked example, and exports a PDF report.
Pricing
Free 30-minute preview; no sign-up required.
Best for
Engineers needing a standard-cited calculation and a reviewer-ready report without buying desktop suites.
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A free grab-bag of 90+ browser tools — text generators, image compressors, QR codes, JSON formatters, converters — a handy bookmark, not built for any one specific job.
FreeNo sign-upNothing to install
What to know▼
How it works
A collection of 90+ browser-based tools including fancy/glitch text generators, image compressors and converters, QR code generators, JSON formatters, unit converters, calculators, and video downloaders. Everything runs instantly in the browser.
What's different
No signup, no downloads, and no paywalls for any of the 90+ tools.
Pricing
Free.
Best for
Anyone who wants a quick, no-signup bookmark for miscellaneous everyday web utilities.
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An offline mobile app to view, edit and convert PDF, Word, Excel and PowerPoint files in 17 languages — a general document viewer, not a spreadsheet replacement.
No sign-upWorks offline
What to know▼
How it works
An offline Android app for opening and viewing PDF, DOCX, XLSX, PPT, TXT, and RTF files, with no sign-up or uploads required.
Best for
Android users who want a fast, private, offline reader for documents they receive in various formats.
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A free collection of 25+ browser-only utilities (PDF merge/split, image compression, calculators, and more) that process everything locally with no account or upload.
FreeNo sign-upNothing to install
What to know▼
How it works
Provides 25+ browser-only tools including image compression, PDF merge/split, salary calculator, investment simulator, and roulette, with all processing on-device.
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100+ free offline browser tools spanning PDF, image, developer, finance and niche calculators, no ads or signup.
FreeNo sign-upWorks offline
What to know▼
How it works
100+ free offline tools spanning PDF, image, developer, finance, and niche categories, including a Zakat calculator, Pakistani electricity bill calculator, CNIC validator, cricket run rate calculator, and QR clipboard sync.
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On-device OCR that extracts text from screenshots or images in 16 languages without uploading anything to the cloud, for people wary of sending images to online OCR services.
No sign-upWorks offlineNo tracking
What to know▼
How it works
Extracts text from screenshots, photos, screen areas, or any web image entirely on-device; right-click or select an area for editable text, supporting 16 languages, QR codes, read-aloud, and TXT/Markdown export.
What's different
Private and offline; no account, uploads, or tracking.
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Free browser-based toolkit with calculators, converters, text and image utilities, PDF merge, and developer tools.
FreeNo sign-up
What to know▼
How it works
Offers calculators, converters, text and image utilities, PDF merge, QR and password generators, and developer tools, working in the browser with no signup.
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A free Chrome extension that converts PDFs to editable Excel spreadsheets in one click. Text PDFs are parsed locally, while scanned or image PDFs use cloud-based AI table extraction.
Watch out · Text PDFs stay local, but scanned or image-based PDFs are sent over HTTPS for cloud AI extraction rather than processed on-device.
FreeNo sign-upNo subscription
What to know▼
How it works
A Chrome extension that converts a PDF into an editable Excel spreadsheet in one click; text-based PDFs are parsed instantly and locally, while scanned or image PDFs go through AI-powered table extraction over HTTPS.
Pricing
Free, no login or subscription, no size limits.
Best for
Anyone who needs a quick, no-signup way to turn PDF tables into editable spreadsheets.
Watch out
Text PDFs stay local, but scanned or image-based PDFs are sent over HTTPS for cloud AI extraction rather than processed on-device.
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Redact PDFs locally, verify the redaction actually worked
No sign-upWorks offlineData stays with you
What to know▼
How it works
Regex/checksum doğrulayıcıları ve isteğe bağlı yerel AI modeliyle tespit eder, OCR ile tarama okur, her dışa aktarım hash tabanlı sertifikayla dört yönden yeniden doğrulanır.
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A local-first markdown editor that a developer's AI agent can read and co-edit live in the same file, for people who don't want their notes leaving their disk.
No sign-upWorks offlineNo tracking
What to know▼
How it works
A fast, local-first markdown editor that opens any .md file instantly, and lets an AI agent read, write, and co-edit the same file alongside you via a CLI, agent plugin, and MCP.
What's different
No account or telemetry — files never leave your disk.
Best for
People who want their AI agent editing notes alongside them without the files leaving their machine.
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A toolbox of 100+ free browser-based utilities (file converters, PDF merger, CSV cleaner, an IQ test and more) that run entirely on your device so files never get uploaded.
FreeNo sign-upData stays with you
What to know▼
How it works
100+ browser-based utilities — HEIC to JPG conversion, photo compression, PDF merging, CSV cleanup, receipt generation, an IQ test and more — all running entirely on-device.
What's different
No server means files and data physically cannot leave the device; no uploads, signup or watermarks.
Pricing
Free.
Best for
People needing quick everyday file conversions or utilities without uploading files anywhere.
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A free browser-based meme generator with no sign-up, watermarks or file uploads — everything is edited locally and images never leave your device.
FreeNo sign-upWorks offline
What to know▼
How it works
A browser-based meme generator: upload an image or paste a URL, add top and bottom text, apply one of 12 filters, and download as PNG or copy to clipboard.
What's different
No uploads to any server — everything is edited locally in the browser.
Pricing
Free, no sign-up, no watermarks, unlimited use.
Best for
Anyone who wants to make memes quickly without creating an account.
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A free bundle of 332 small web utility tools pitched as secure and privacy-first, though the listing gives no detail on what each tool does or how it handles data.
FreeNo sign-upData stays with you
What to know▼
How it works
A bundle of 332 free web utility tools, pitched as privacy-first.
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Free no-account Markdown editor with live preview and export for anyone who wants to write and share Markdown without installing an app.
FreeNo sign-upCan export my data
What to know▼
How it works
A free online Markdown editor with live preview and export, supporting GFM, 190+ highlighted languages, LaTeX math, Mermaid diagrams, multi-tab editing, and private URL sharing.
Pricing
Free, no account or document upload required.
Best for
People who want to write, preview, and share Markdown without installing an app.
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170+ free browser-based calculators, text, PDF, and dev tools that run entirely client-side with nothing sent to a server, instead of ad-heavy online tool sites.
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Free browser-based PDF and photo editing tools (edit, compress, convert, OCR) that never upload files, for privacy-conscious users avoiding paid software or sign-ups.
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Fixes the iPhone-photo compatibility problem by converting HEIC to PNG locally in your browser, nothing uploaded to a server, no account, no app to install.
FreeNo sign-upNothing to install
What to know▼
How it works
Converts HEIC photos from iPhones/iPads into PNG, JPG or WebP directly in the browser; supports batch conversion of up to 100 files at once with no file-size limits.
What's different
Conversion runs entirely on-device — photos are never uploaded to a server or stored.
Pricing
Free, no sign-up required.
Best for
People who need to convert iPhone HEIC photos for apps, websites or Windows PCs that can't open the format, without uploading personal photos.
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Converts, merges, splits, fills, signs, and compresses documents and images in the browser, for anyone needing quick file conversion instead of installing desktop office software.
FreeNo sign-up
What to know▼
How it works
Runs document tools like PDF-to-Word/PowerPoint conversion, PDF merge/split/fill/sign, and image compression in the browser.
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A mobile app that converts video to GIF entirely on-device, with no upload, watermark, or account required, and can share the result to WhatsApp, Telegram, Instagram, Reddit, or X.
No sign-upWorks offlineData stays with you
What to know▼
How it works
Encodes video to GIF on-device with a trim/scrubber editor and FPS/resolution/speed controls.
Pricing
One-time $2.99 premium removes ads and unlocks longer clips and higher quality; no subscription.
Best for
People converting short video clips to GIFs privately without uploading footage.
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A browser-based tool that compresses JPG, PNG, WebP, and HEIC images to an exact target file size locally, without uploading them, for forms, exams, and visa applications.
No sign-up
What to know▼
How it works
Compresses images to an exact target size directly in the browser, no uploads.
Pricing
Free, no signup, no watermark.
Best for
Filling out forms, exams, job portals, and visa applications with strict file-size limits.
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A free, browser-based batch toolkit for developers and designers — resize/convert files, decode JWTs, and more, entirely client-side with nothing uploaded to a server.
FreeNo sign-upNothing to install
What to know▼
How it works
A browser-based batch toolkit that processes dozens of files at once — resizing/converting/compressing images (PNG, JPG, WebP), converting CSV to JSON, decoding JWTs, and more — entirely client-side.
What's different
Most single-file tools handle one file at a time; this is built to batch-process dozens at once, with nothing uploaded to a server.
Pricing
Free.
Best for
Developers and designers who need to process many files at once without installing software or uploading data.
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A free browser-based image toolkit (converter, compressor, background remover, upscaler) that processes files locally without upload.
FreeNo sign-upData stays with you
What to know▼
How it works
Bundles ten browser-based image tools (format converter, compressor, AI background remover, resizer with social presets, cropper, rotator, image-to-PDF, AI upscaler, watermark tool, screenshot beautifier) using Canvas API and WebAssembly.
What's different
Images never leave the device; no upload, account, or per-file limits; supports batch processing.
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A free collection of browser-based PDF and utility tools that process everything locally so files never leave your device — a mix of general and developer tools.
FreeNo sign-upNothing to install
What to know▼
How it works
A set of browser-based PDF and utility tools — merge, split, convert, plus general developer tools — that process files entirely client-side, so nothing uploads to a server.
What's different
100% local processing is the stated privacy angle: files never leave your device, unlike server-side PDF tools.
Pricing
Free, no registration.
Best for
Anyone who needs quick PDF merging/splitting/converting without creating an account or uploading files to a third party.
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Converts, compresses and edits files for free in your browser, or via its own API for programmatic use — for casual users and developers integrating file conversion into workflows.
FreeNo sign-upNothing to install
What to know▼
How it works
Converts, compresses and edits files for free directly in the browser, or via its own API for programmatic use, with no install, signup or logs.
Pricing
Free.
Best for
Casual users needing quick file conversion, and developers integrating file conversion into workflows via API.
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A free macOS app that captures, annotates and merges multiple screenshots into a single PDF, or exports PNG and JPEG, working fully offline with no account required.
Watch out · Works fully offline with no account, so nothing is uploaded to a server.
FreeNo sign-upWorks offline
What to know▼
How it works
A free macOS app that captures a screen area, lets you annotate it, and merges multiple screenshots into a single PDF, also exporting as PNG or JPEG.
Pricing
Free.
Best for
Mac users who want to turn screenshots into a shareable PDF without an account or internet connection.
Watch out
Works fully offline with no account, so nothing is uploaded to a server.
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A free collection of browser-based PDF tools (image-to-PDF, merge, compress, organize, Word-to-PDF) that run entirely locally with no uploads or account required.
FreeNo sign-up
What to know▼
How it works
Runs PDF tools (images to PDF, merge, compress, organize pages, Word to PDF) entirely in the browser with nothing uploaded to a server.
Pricing
Free.
Best for
People wanting quick, private PDF edits without installing software or creating an account.
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A free all-in-one online tool for converting, compressing and combining PDF, Word, Excel and image files, with no signup, no watermark and nothing stored.
FreeNo sign-up
What to know▼
How it works
Converts, compresses, and combines PDF, Word, Excel, and image files (JPG, PNG) online in a single tool.
What's different
Combines multiple document conversion tasks in one place with no sign-up, no watermark, and nothing stored.
Pricing
Free.
Best for
Anyone needing quick PDF or document conversion without creating an account or paying a fee.
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Free browser-only toolkit for stripping captions from videos and editing PDFs, with no upload and Arabic/RTL support.
Watch out · Files never get uploaded; supports English and Arabic with full RTL.
FreeNo sign-up
What to know▼
How it works
Removes captions/subtitles from videos (via ffmpeg.wasm) and offers a full PDF toolkit — merge, split, rotate, compress, watermark, extract pages, images-to-PDF, PDF-to-JPG — all running locally via pdf-lib/pdf.js.
Pricing
Free, no signup, no watermark on output.
Watch out
Files never get uploaded; supports English and Arabic with full RTL.
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Converts any webpage, including JavaScript-rendered ones, into clean Markdown in seconds — free, no signup, built on a third-party Apify scraping actor rather than its own crawler.
Watch out · Powered by a third-party Apify scraping actor rather than its own crawler.
FreeNo sign-up
What to know▼
How it works
Converts any URL, including JavaScript-rendered pages, into clean, well-structured Markdown.
Pricing
Free, no signup required.
Best for
People who need a page's content as clean Markdown quickly, without building their own scraper.
Watch out
Powered by a third-party Apify scraping actor rather than its own crawler.
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Converts a PDF to a dark-mode version entirely in your browser so the file never leaves your device. A narrow, privacy-friendly reading tool rather than a full PDF editor.
Watch out · A narrow reading tool for dark-mode conversion, not a full PDF editor.
FreeNo sign-upData stays with you
What to know▼
How it works
Converts any PDF to a dark-mode or night-mode version entirely in the browser, keeping images in their original color, and lets you download it as a permanent dark PDF.
What's different
Processing happens fully in-browser so the file never leaves your device.
Pricing
Free.
Best for
People who want to read PDFs in dark mode without uploading files to a server.
Watch out
A narrow reading tool for dark-mode conversion, not a full PDF editor.
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A free suite of 50+ browser-based tools for PDFs, images, documents, and code, including AI features like background removal and OCR, for people who want quick private tools without creating an account.
FreeNo sign-up
What to know▼
How it works
Over 50 fast tools for PDFs, images, documents, and code, most running in the browser including AI background removal and OCR.
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A free, no-signup collection of over 75 browser-based tools — finance and health calculators, unit converters, and PDF utilities — that run entirely in the browser without uploading files to a server.
FreeNo sign-up
What to know▼
How it works
Runs calculators, converters, and PDF tools client-side in the browser with no account and no server upload.
Best for
Anyone needing a quick calculation, conversion, or PDF edit without signing up.
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A free collection of browser-based tools — QR code generator, image and PDF compressor, word counter, calculators, password generator — with no sign-up or server uploads.
FreeNo sign-upNothing to install
What to know▼
How it works
Browser-based tools including a QR code generator, image/PDF compressor, word counter, calculators, and password generator.
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A hub of 170+ free browser-based tools (PDF, image, resume/ATS and more) that run client-side, so files never leave your device. A broad utility site, not a specialized tool for one profession.
FreeNo sign-upNothing to install
What to know▼
How it works
A hub of 170+ browser-based tools across 16 categories, including a PDF toolkit (compress/merge/split), an AI resume builder with ATS scoring, and financial calculators for India (GST, PPF, EPF) and the US (401k, HSA).
What's different
Processing happens locally in the browser via WebAssembly, so files never reach a server, and there is no sign-up, daily limit, or watermark.
Pricing
Free, no account required.
Best for
Anyone needing quick PDF, resume/ATS, or financial calculations without installing software or creating an account.
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A free web tool that converts VCF contact exports from iPhone, Android, Gmail or Outlook into CSV or Excel — not a mobile app, works in the browser.
FreeNo sign-up
What to know▼
How it works
Converts vCard (.vcf) contact exports from iPhone, Android, Gmail or Outlook into a CSV or Excel spreadsheet, and works the other way too — all in the browser.
Pricing
Free.
Best for
Anyone needing to move contacts between phones, email clients or a spreadsheet without signing up for anything.
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Converts CBZ/ZIP comic archives to PDF entirely in your browser — nothing uploaded, no account needed, good for readers who don't want desktop software or a server touching their files.
No sign-upNothing to installData stays with you
What to know▼
How it works
Converts CBZ and ZIP comic archives into PDF files for tablets, e-readers, printing, or long-term storage, entirely in the browser.
What's different
Everything is processed locally — no uploads and no account needed.
Best for
Comic readers who want their files converted without a desktop app or server ever touching them.
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A free set of browser-based tools for merging or compressing PDFs, converting images, and running OCR on video, PDF, and photo files, with all processing done locally so files are never uploaded.
FreeNo sign-upData stays with you
What to know▼
How it works
runs entirely inside the browser tab so files never get uploaded; no accounts, tracking, or limits.
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Free browser-based converters for PDFs, images and video that process files locally rather than uploading them - a general privacy-focused toolkit, not a developer-specific one.
FreeNo sign-upData stays with you
What to know▼
How it works
A growing collection of free tools for converting PDFs, images and video. Every conversion runs locally in the browser, so files are never uploaded to a server.
What's different
No uploads, no account, no server ever sees your files — processing happens entirely on-device.
Pricing
Free.
Best for
People who want to convert files quickly without creating an account or uploading personal documents.
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Free browser-only image toolkit (compress/convert/resize) for anyone who wants quick edits without uploading files to a server.
FreeNo sign-upData stays with you
What to know▼
How it works
A browser-based image toolkit for compressing, upscaling, converting to base64, rotating, picking colors, removing hidden EXIF metadata, and resizing images for social media.
What's different
Everything processes locally in the browser — no sign-up, no uploads, no limits.
Pricing
Free.
Best for
Anyone who wants quick image edits without uploading files to a server.
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Runs PDF tools like merge, split, and convert directly in your browser via WebAssembly instead of uploading files to a server. For anyone who doesn't want documents leaving their device.
Watch out · Described as launching soon, and one of the 23 tools does not run fully on-device.
FreeNo sign-upWorks offline
What to know▼
How it works
Runs PDF tools — merge, split, compress, and more — directly in the browser using WebAssembly instead of uploading files to a server.
What's different
22 of 23 tools run fully on-device, and the maker publishes exactly which tool is the exception rather than a blanket privacy claim.
Pricing
Free, no account required.
Best for
People who don't want their documents leaving their device.
Watch out
Described as launching soon, and one of the 23 tools does not run fully on-device.
We check every product on this page once a day and record whether it still answers.
Converts images to PDF and edits them entirely in your browser via WebAssembly, so files never touch a server — worth it if privacy matters more than cloud convenience.
No sign-upWorks offlineData stays with you
What to know▼
How it works
Converts JPG, PNG, WEBP, HEIC, and BMP images to PDF and edits PDFs entirely in the browser using WebAssembly and local JS, including a suite of 36 tools to merge, split, compress, sign, protect, and decrypt.
What's different
Files never touch a server, work offline, and have no file size or page limits.
Best for
People handling sensitive documents who don't want to upload them to a cloud service.
