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Everything you need, in one place
Nyako bundles the file tasks people actually run into — compress a PDF down to a target size, merge PDFs into one document, crop a passport photo to spec, or convert between image formats — as a single free toolkit instead of nineteen different websites. Pick a category below, or search for what you need at the top of the page.
Learn
Practical guides for file work
The tool is only part of the job. These 31 guides explain file formats, compression targets, document conversion quirks, and the checks that help you avoid the most common mistakes — from getting a passport photo under a KB limit to figuring out why a PDF to Word conversion looks messy.
July 20, 2026•6 min read
How to Compress a PDF for Email Without Losing Quality
Most email providers cap attachments around 25MB. Here's how to shrink a PDF down to size without turning your text into mush.
Read guideJuly 22, 2026•7 min read
PNG vs JPG vs WebP: Which Image Format Should You Actually Use?
Three formats, three very different jobs. Here's a plain-language breakdown of when to use each one — and how to convert between them in seconds.
Read guideJuly 24, 2026•6 min read
How to Take a Passport Photo at Home (Step by Step)
Skip the photo booth. Here's how to get a compliant passport or visa photo with just your phone and a plain wall.
Read guideJuly 27, 2026•5 min read
How to Merge Multiple PDFs Into One File
Combining scattered PDFs — invoices, scanned forms, chapters of a report — into a single file, in the right order, without installing anything.
Read guideJuly 28, 2026•5 min read
How to Create a Transparent Signature for Digital Documents
A scanned signature usually comes with a white or off-white background that looks obviously pasted-on. Here's how to make it truly transparent.
Read guideSeptember 5, 2026•4 min read
How to Extract Text from a Screenshot
An error message, a quote, a table locked inside an image — here's how to pull the text back out as something you can actually copy and paste.
Read guideSeptember 2, 2026•5 min read
Image Dimensions for Instagram, Facebook, and LinkedIn
The pixel dimensions social platforms commonly expect, and how to resize a photo to fit them without an awkward crop.
Read guideSeptember 6, 2026•4 min read
Delete vs Extract PDF Pages: Which One Do You Need?
Two PDF tools that sound almost identical but do opposite jobs. Here's a quick way to tell which one actually solves your problem.
Read guideSeptember 11, 2026•5 min read
Excel to PDF: How to Stop Columns Getting Cut Off
Export a wide spreadsheet to PDF and half the columns vanish off the edge of the page. Here's why it happens and how to get a complete, readable PDF.
Read guideWhy Nyako
Built to earn your trust
Runs in your browser
Most core tools process files on your device — nothing is uploaded for those local tools.
No login
Every tool works the moment you land on the page. No account needed.
Privacy first
For tools that process locally, your files stay on your device. The individual tool page explains its processing model.
Lightning fast
No upload, no queue, no waiting on a server. Processing starts instantly.
No watermarks
Free tools shouldn't punish you. Your output is clean, every time.
Works offline
Once a tool's loaded, most keep working without an internet connection.
Pricing
Free. No plans. No paywalls.
Every tool on Nyako is free to use, with no file limits and no watermarks. We keep the lights on with unobtrusive ads — never by charging for the tools themselves.
About
Why we built Nyako
File tools online are usually slow, ad-choked, and ask you to upload personal documents to a stranger's server. Nyako runs everything on your own device instead — so it's faster, and there's simply nothing of yours for us to lose.
That covers everyday jobs like compressing a PDF for email, resizing photos for social media, converting Excel to a clean PDF, and pulling text out of a screenshot — all covered in our guides if you want the details behind the tool.
FAQ
Good questions
Do you store my files?
No. Every core tool processes your file inside your own browser. It's never uploaded anywhere, so there's nothing on a server to leak, sell, or lose.
Do I need to sign up?
No. Every tool works the moment you land on the page. An account is only ever optional, for saving history later.
Is it really free?
Yes. The core tools stay free, supported by unobtrusive ads — never by watermarking or limiting your files.
How can browser-based tools be as capable as server-based ones?
Modern browsers can run genuinely fast image and PDF processing locally, using the same JavaScript engine that renders the rest of the page. For everyday tasks — compressing a photo, merging a few PDFs, converting a document — that's more than enough power, without needing to send your file anywhere first.
Will my file quality get worse using these tools?
Not more than any equivalent desktop tool would. Compression tools reduce file size by design, but you control the target — and lossless operations like merging, splitting, or rotating don't touch image or text quality at all.
Is there a file size limit?
Since processing happens on your own device, the practical limit is your device's memory rather than an artificial cap we impose. Very large files (several hundred MB) may take longer to process locally than a smaller one, but there's no arbitrary upload ceiling.
Does Nyako work on mobile?
Yes — every tool works in a mobile browser the same way it does on desktop, since the processing happens locally either way. No app install is required.
What happens if I close the tab midway through a task?
Since nothing is uploaded to a server, closing the tab simply stops the local process — there's no partial upload sitting somewhere. Just reopen the tool and start again.