BlinkIMG

Image compressor alternatives

Image compressor alternatives, read on each tool’s own pages: 11 tools set beside Blinkimg, from web compressors to offline apps. Each one is shown for the job it does best, with its limits, its price and what it does well.

  • 11 tools reviewed
  • 7 side-by-side comparisons
  • Our figures measured, not estimated

By Sahadat Husain, who builds Blinkimg.Every tool's facts checked on its own pages on 29 September 2026.

Output format
– / –

Drop images or browse

JPEG · PNG · WEBP · AVIF · HEIC · up to 50 at once · max 30 MB each

HEIC
PNG
JPEG
AVIF
WEBP
Advanced settings
SmallerAutoBetter

Auto tunes each image.

A hard cap for the number your form demands.

A floor for forms that refuse small files.

Max resolution

Empty side keeps the ratio. Never enlarges.

Image compressor, before: the original photograph, 9.8 MBOriginal · 9.8 MB
Image compressor, after: the same photograph as AVIF, 97.1 KBAVIF · 97.1 KB
−99%
A real result from the engine above: the same photograph, 9.8 MB in, 97.1 KB out as AVIF. Run one file through any tool on this page and compare the two.

The short list

Pick by the job you have

No compressor wins every job. Start from yours: each pick names the tool whose own pages show it does that job, and why.

  • A file under an exact size

    BlinkimgOur pick

    Set a target in KB or MB and the file comes back at or under it, as JPG, PNG, WebP or AVIF. TinyPNG, iLoveIMG and compressjpeg.com state no target size.

  • iPhone HEIC photos

    BlinkimgOur pick

    HEIC becomes JPG, PNG, WebP or AVIF, 10 conversions a free run. TinyPNG always turns HEIC into JPG.

  • Code, scripts and AI agents

    BlinkimgorKraken.ioOur pick

    Blinkimg's API starts with 500 free credits a month and an MCP server for Claude, ChatGPT and Cursor. Kraken.io's API is billed by data volume.

  • A WordPress site

    ShortPixelorTinyPNG

    Both offer a WordPress plugin. ShortPixel also generates WebP and AVIF copies; TinyPNG adds a Figma plugin and an image CDN.

  • Photos that must stay on your device

    Squooshorcompressjpeg.com

    Both compress in your browser, so nothing uploads. Squoosh takes one image at a time; compressjpeg.com takes 20 JPGs.

  • Offline, on your own computer

    ImageOptimorCaesium

    ImageOptim is a free Mac app, lossless by default. Caesium batches whole folders on Windows and macOS.

  • Upscaling or background removal

    iLoveIMG

    iLoveIMG adds AI upscaling and background removal, and its Premium plan lists 2,000 AI credits.

  • SVG and GIF files

    Compressor.io

    Compressor.io compresses SVG and GIF beside JPEG, PNG and WebP, lossy or lossless.

  • Hundreds of formats, RAW included

    XnConvert

    XnConvert reads more than 500 formats, RAW and HEIC among them, on Windows, Mac and Linux. Free for private use.

12 tools

All image compressor alternatives at a glance

Where each tool runs, how many files it takes, its largest file and its price, as each vendor states them. “Not stated” means the vendor publishes no figure; we never guess one.

All image compressor alternatives at a glance: where each runs, its batch, its largest file and its price, read on 29 September 2026
ToolBest forRunsBatchLargest filePrice
BlinkimgOne drop that compresses, converts and resizesOn our servers50 images30 MBFree; Pro $39 a year
TinyPNGWordPress sites and animated PNGOn its servers20 images5 MB$3.25/mo, yearly
iLoveIMGAI upscaling and one-job toolsOn its servers30 files a task200 MB a task$7/mo or $48/yr
compressjpeg.comJPEGs that must stay on your deviceIn your browser20 JPGsNot statedFree
SquooshTuning one image by eyeIn your browserOne image at a timeNot statedFree, open source
OptimizillaA quality slider on every imageIn your browserNot statedNot statedFree
Compressor.ioSVG and GIF filesOn its servers50 compressions a day10 MB$50 a year
ShortPixelWordPress sites that want a pluginOn its serversNot stated10 MB signed out100 credits a month
Kraken.ioAn API billed by data volumeOn its servers20 files1 MBFrom $5/mo
ImageOptimAn offline Mac workflowOn your MacNot statedNot statedFree (GPL)
CaesiumFree offline batches on WindowsWindows, macOSYes, with foldersNot statedFree (GPL-3.0)
XnConvertHundreds of formats offlineWindows, Mac, LinuxNot statedNot statedFree for private use

7 comparisons

Side by side, one tool at a time

The tools people most often leave for Blinkimg each have a full page: every limit beside ours, our measurements, what the other tool does better, and how to switch.

TinyPNG

Why people leave TinyPNG, figure by figure

TinyPNG is the best-known web compressor, and its free tool is good at what it does. People leave it at its limits. Here are its free web figures beside ours, and the two paid web plans.

  1. 01Free batch

    50TinyPNG: 20

    More images in one drop

    TinyPNG's free tool takes 20 images a run. Blinkimg takes 50, so a folder of product photos goes in once.

  2. 02Largest free file

    30 MBTinyPNG: 5 MB

    Camera files fit

    TinyPNG's free tool stops at 5 MB a file. Blinkimg's free plan takes files up to 30 MB, room for a full-size camera photo.

  3. 03Free conversions

    10TinyPNG: 3

    More format changes

    TinyPNG converts 3 images free, and its Web Pro plan keeps the 3. Blinkimg converts 10 a free run.

  4. 04Exact size

    KB targetTinyPNG: none

    A size you choose

    Forms and job portals ask for a file under 50 KB or 2 MB. Blinkimg aims at the number you set; TinyPNG chooses the size for you.

  5. 05HEIC out

    4 formatsTinyPNG: JPG

    iPhone photos, your way

    TinyPNG always turns HEIC into JPG. Blinkimg turns it into JPG, PNG, WebP or AVIF.

  6. 06Paid web plan

    $39/yrTinyPNG: $39/yr

    Same price, credits and plugins included

    TinyPNG's Web Pro is $39 a year, with no API credits. Blinkimg Pro is $39 a year and includes 3,000 image API credits a month for the API, WordPress and Shopify.

Every limit, our measurements and how to switch are on the full TinyPNG alternative comparison.

Privacy and speed

Where each tool does the work

Every compressor here works in one of three places. Where it runs decides whether your file uploads, how big a batch stays fast, and whether it works offline.

  • On the tool’s servers

    The file uploads, a server compresses it, and you download the result. Big batches and heavy formats such as HEIC and AVIF stay fast on any device. Each tool states how long it keeps your files.

    • Blinkimg
    • TinyPNG
    • iLoveIMG
    • Compressor.io
    • ShortPixel
    • Kraken.io

  • In your browser

    The page compresses the file on your own device, so nothing uploads. Your computer does the work, so large batches are slower, and each tool reads only the formats your browser can decode.

    • compressjpeg.com
    • Squoosh
    • Optimizilla

  • On your computer

    An app you install. It works offline and on whole folders, with no upload and no daily cap. You install and update it yourself, and it runs only on the systems it ships for.

    • ImageOptim
    • Caesium
    • XnConvert

Measured

What our engine did with real files

Our side of every comparison is a file, not a promise: a 576.8 KB JPEG photo, 1920 × 1280 and a 343 KB photo saved as HEIC, each saved by the engine behind the tool above. Run the same files through any alternative and compare.

  • Use the same file

    Run one original through every tool. A copy saved from a chat app or a screenshot is already compressed and makes every tool look worse.

  • Compare at the same quality

    A smaller file is only better if it looks the same. Open both results at 100% and check skies, skin and text before you read the size.

  • Check the format that comes out

    An AVIF beside a JPG is not a fair size test. Compare the same output format, or compare against the size limit you actually have.

Every byte count is the size of the actual file our engine produced from the named source, the same bytes you would download, not an estimate. The reference photo is one of our own photographs, an iguana on a branch, and the camera photo is a real one too. Drop your own file into the tool above to rerun any of them. How we measure names the sources and the settings.

Test it yourself

How to test an alternative in one minute

A fair test needs one original file, the same output format on both sides and a look at the result, not only the size.

  1. HEICPNGJPEG50 to compress, 10 to convert

    Drop the same files

    Take one original photo, straight from the camera or phone, and drop it here and into the tool you are weighing.

  2. JPEG2.3 MBWEBP369.8 KB−84%4500×3000 → 2000×1333 px

    Pick a format or a size

    Keep each tool on its default, or set the same output format on both. Type a Max file size here if a form sets a limit.

  3. Download all (3) as ZIP

    Download and compare

    Open both results at 100% and check skies, skin and text first. Then read the two sizes.

12 tools

Every tool, what it does well and where it stops

One card per tool, ours first: the job it serves best, the facts that decide it, three things it does well and three places it stops. Each links to the tool’s own site.

01 · Best for one drop that compresses, converts and resizes

BlinkimgOur pick

Blinkimg compresses and converts JPG, PNG, WebP, AVIF and HEIC, 50 images at 30 MB each on the free plan, to an exact KB or MB target when you set one. The same engine runs the API and the MCP server.

Batch
50 images
Largest free file
30 MB
Writes
JPG, PNG, WebP, AVIF
Price
Free; Pro $39 a year
  • A target in KB or MB, in every output format
  • HEIC to JPG, PNG, WebP or AVIF
  • An API with 500 free credits a month, and an MCP server
  • Every upload deleted within 24 hours
  • AI metadata remover built in
  • A WordPress plugin on the same credits, thumbnails free
  • A Shopify app in progress

Use it at the top of this page

Method

How each image compressor comparison is made

The same three rules for every tool, so the cards read alike and you can check any line yourself.

  • Their figures, from their pages

    Every limit and price was read on the vendor's own site on 29 September 2026. When a vendor publishes no figure, the card says "Not stated".

  • Our figures, from our engine

    Every Blinkimg number is a file the engine wrote, measured in decimal kilobytes. The method is on how we measure.

  • A job for every tool

    Each card names what the tool does well, and the short list names when to pick it over Blinkimg.

Read on 29 September 2026

  1. TinyPNG: tinypng.com
  2. iLoveIMG: iloveimg.com
  3. compressjpeg.com: compressjpeg.com
  4. Squoosh: squoosh.app
  5. Optimizilla: imagecompressor.com
  6. Compressor.io: compressor.io
  7. ShortPixel: shortpixel.com
  8. Kraken.io: kraken.io
  9. ImageOptim: imageoptim.com/mac
  10. Caesium: saerasoft.com/caesium
  11. XnConvert: xnview.com/en/xnconvert

Questions, answered

What people ask when they weigh one image compressor against another.

What is the best free image compressor?

The one that fits the job you have. For a file under an exact size, 50 images at once or HEIC from an iPhone, Blinkimg is free. For photos that must not upload, Squoosh or compressjpeg.com. For WordPress, ShortPixel or TinyPNG. Each limit is listed above.

Is TinyPNG free to use?

Yes. Its web tool takes 20 images a run at 5 MB each and converts 3 for free. Web Pro costs $3.25 a month, billed yearly. Blinkimg's free tool takes 50 images at 30 MB each.

Is TinyPNG safe to use?

TinyPNG's FAQ says only you can access your uploads and that it deletes them after 48 hours at most. Like Blinkimg, it compresses on its servers, so the file does leave your device. Blinkimg deletes files within 24 hours and strips GPS from every output.

What is the best lossless image compression tool?

ImageOptim, a free Mac app, is lossless by default, and Compressor.io offers a lossless mode online. Blinkimg keeps every pixel only at quality 100; its Auto setting is lossy by design, for a smaller file.

Is there a free PNG compressor?

Yes. Blinkimg, TinyPNG, Optimizilla and Compressor.io all compress PNG for free. Blinkimg at Auto and Optimizilla both write a 256-colour PNG, which keeps a logo exact and changes the pixels of a photo slightly.

Which image compressor works offline?

ImageOptim on a Mac, Caesium on Windows and macOS, and XnConvert on Windows, Mac and Linux. Squoosh and compressjpeg.com run in your browser without uploading, but they need the page open.

How are these comparisons made?

We read every competitor figure on the competitor's own pages, on 29 September 2026 for the current set, and link each one. Every Blinkimg figure is a file our engine produced. Each tool's card also says what it does well.

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Average rating

5.0

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    50 images at 30 MB each, free and with no account. Set a KB target or convert a HEIC, then compare the result with any tool above.

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