How to Resize and Convert Images for Free in 2026: HEIC to JPG, Under 200 KB, 14 Sizes (Squoosh, TinyPNG, Canva, iLoveIMG, Jobbit)

The photos from your phone are 4,000 pixels wide and 5 MB each, the listing tool wants a square, the website says the page is slow, and the client's form rejects HEIC because it has never heard of it. So you open a free resizer, drag in the first image, then find out the second one needs a subscription, the download came back as a blurry 640 pixel preview, or the batch is capped at twenty. Google's own page-speed data still puts oversized images at the top of the reasons small-business sites load slowly, and the fix is a five-minute job that most people do one image at a time.

This guide shows you how to resize an image, convert it and shrink it in one pass, for one photo or a folder of two hundred. You get a size cheat sheet for the platforms UK businesses actually use, the HEIC to JPG fix for iPhone photos, and the settings that get a photo under 200 KB with no visible loss. And you get the shortest route: the Jobbit image resizer, where you attach the images, pick the job from a list, and get one zip back with everything resized, converted and renamed.

Resize images on Jobbit in one message

The Jobbit image resizer is a form, not a prompt box. You attach the images on the page (one, a few, or a whole folder, HEIC included), pick what should happen to them (HEIC to JPG, under 200 KB for a website, Instagram post, story, LinkedIn banner, eBay or Etsy listing, UK passport photo, PNG or JPG to WebP, or another size), choose the output format and roughly how many there are. The page shows the message it will send and sends it, with the files, the moment you have a free account. This is the message for the default choices:

1I am going to attach some images in this chat. It is a few images. Convert the HEIC photos to JPG at full resolution. Keep the current format. Keep them sharp, keep the originals untouched, name the new files clearly, and give them back as one zip with a short list of what changed.

Jobbit opens the files in its workspace, checks each image's dimensions and format, resizes with proper resampling (which is where cheap resizers go soft), converts formats, applies your file size cap if the job has one, and returns a zip with sensible names such as sofa-front-1080.jpg. It then tells you what it did and flags anything odd: a portrait photo that a square would crop, a screenshot that should stay PNG, a tiny image that cannot be enlarged without looking worse.

Because the images are now in a chat, the next step is one sentence: "now make the 4:5 versions for the feed", "remove the backgrounds on the product shots", "add our logo bottom right", "make WebP copies under 150 KB for the website". The free plan includes 100 credits a day, which covers batches like this, and there is no card to enter. If you do this every week, the Plus plan at £15 a month adds a larger monthly pool, but a resize job is a free-plan job.

The size cheat sheet: what each platform actually wants in 2026

Platforms change their limits, so treat these as the current working sizes and check the upload screen if it complains. The numbers that rarely change: 1080 wide for anything social, 2000 on the short side for marketplaces, and under 200 KB for anything that has to load on a phone. The jobs on the Jobbit form are these rows with the numbers already filled in, so "Instagram post" means 1080 by 1080 and "eBay or Etsy listing" means 2000 on the longest side, square where possible.

HEIC to JPG: the iPhone problem, solved

iPhones save photos as HEIC by default. It is a good format (half the size of JPG at the same quality) and a bad one to send to anyone on Windows, an older website form, or a marketplace.

• Before it leaves the phone: in Photos, select the images, tap Share, then Options, and choose Most Compatible; the shared copies are JPG. To stop HEIC altogether, go to Settings, Camera, Formats and pick Most Compatible.

• For a batch you already have: attach the HEIC files to the image resizer, pick "HEIC to JPG" and "JPG", and every file comes back converted at quality 85 with the original names kept. Add the resize and the size cap on the same form if the photos are going somewhere specific.

One caution: converting HEIC to JPG at 100% quality can make the file bigger than the original. Jobbit uses 85, which is what the phone effectively uses anyway.

Under 200 KB without blur: the order of operations

The most common mistake is compressing first and asking questions later. This is the order Jobbit follows when you pick "under 200 KB for a website", and the order to follow yourself with any tool:

1. Dimensions first. A 4,000 pixel photo shown 1,200 pixels wide on a page is carrying three times the pixels it needs. Resize to the display size (see the cheat sheet) before you touch quality.

2. Format second. WebP is 25% to 35% smaller than JPG at the same quality and every current browser shows it; keep JPG for marketplaces and email, PNG only for logos, screenshots and anything with transparency.

3. Quality last. JPG or WebP quality 75 to 85 is the sweet spot; below 60 you see blocks in skies and skin.

4. Strip what you do not need. Photo metadata (camera model, GPS location) adds kilobytes and, for photos of your home or shop, information you might not want published.

5. Check at 100%. Zoom to actual size on the edges of text and on fine textures. If they look fine, the file is fine. Jobbit does this check and reports the settings it used.

Product photos for Etsy, eBay and your own shop

Marketplaces judge listings on the first image, and the image rules are stricter than social:

• Square or 4:3, big, and consistent. 2000 pixels on the short side for Etsy, 1600 on the long side for eBay and Amazon, the product filling about 85% of the frame, every listing framed the same way.

• Background removal: Amazon requires pure white for the main image; Etsy and eBay do not, but a clean background lifts click-through. Once the batch is in the chat, "cut out the products and put them on white" does the whole set at full resolution, not a small preview.

• Lifestyle shots second: the product in use, resized to the same square so the gallery lines up.

• File size: under 1 MB keeps uploads fast without visible loss at 2000 pixels.

If you need shots you do not have, the AI product photo guide covers generating studio-style images from a phone photo, and the best online image tools go tool by tool for upscaling and background removal.

Why Jobbit instead of a free image resizer site

The tools you will meet when you search all resize an image. The difference is what they ration and what they leave you to do by hand.

None of those tools is bad at its one job. The difference is that a folder of photos is never one job, and on Jobbit the second and third jobs are one sentence each rather than a third site. The 40 free online tools people google most shows how many everyday jobs work the same way.

After the resize: what the same chat does next

• Every platform version at once. "Make the Instagram, Facebook and website versions of these five photos" produces fifteen files in the right sizes from the cheat sheet.

• Backgrounds, watermarks and crops on the same files, at full resolution.

• Alt text and listing descriptions to go with the photos, written from what is in them.

• The page they sit on. A product page or a gallery built and hosted in the same account; the free website guide shows what that can be.

• Presets that stick. "Same sizes as last week" is a complete instruction next time.

• A person when you need one. If the launch needs a photographer, Jobbit can bring in a UK freelancer from the same place.

General assistants such as ChatGPT, Claude, Gemini and Microsoft Copilot can resize an image you attach by running a script, and agents such as Manus and Meta's Muse can do the same. What they do not have is the form that removes the writing, the hosting for the page the images land on, and the marketplace for the human jobs, which is why the comparison of multipurpose agents puts Jobbit first for small businesses.

Mistakes that make resized images look bad

• Enlarging. Making a 600 pixel image into 2000 pixels adds blur, not detail. Use the original, or ask for an upscale and check it critically.

• Compressing a PNG photo. PNG is lossless and large for photos; convert to JPG or WebP first.

• Converting a logo to JPG. Sharp edges and transparency need PNG or SVG; JPG adds halos.

• Cropping the wrong way. Square crops on a portrait photo cut heads and products; ask for a 4:5 version instead.

• Saving over the original. Keep the full-size file in a separate folder; you will need it for print or a new platform size next year. Jobbit never touches the originals.

• Downloading the preview. Free background removers return a 600 pixel preview unless you pay; check the pixel size before you use it.

A 15-minute plan for a folder of photos

• Minute 0 to 3: decide the destinations. Which platforms, which sizes from the cheat sheet, which file cap.

• Minute 3 to 8: run the batch. One trip to the image resizer: attach the folder, pick the job and the format, sign up once with an email address, and the zip arrives in the chat.

• Minute 8 to 12: check five images at 100%. The smallest, the largest, one with text, one with a face, one with a fine pattern.

• Minute 12 to 15: file it. Originals in one folder, exports by platform, and the chat kept for next time.

Frequently asked questions

How do I resize an image without losing quality?

Resize down, never up, use a tool that resamples properly, and keep JPG or WebP quality at 75 to 85. Losing pixels you do not display costs nothing visible; enlarging or crushing quality below 60 is what makes an image look bad. The Jobbit image resizer resamples properly and reports the settings it used.

What size should Instagram photos be in 2026?

1080 by 1080 pixels for a square post, 1080 by 1350 for a portrait 4:5 post and 1080 by 1920 for stories and reel covers, saved as JPG under 1 MB. Instagram compresses everything again, so a sharp 1080 image beats a 4,000 pixel one that gets crushed. Pick "Instagram post" or "story" on the form and the size is set.

How do I convert HEIC to JPG for free?

On an iPhone, share the photos with the Most Compatible option or set the camera to Most Compatible. For a batch you already have, attach the HEIC files to the Jobbit image resizer, pick "HEIC to JPG", and every file comes back as JPG at quality 85 with the names kept. Avoid 100% quality, which makes files larger than the original HEIC.

How do I get an image under 200 KB?

Resize to the width it will be displayed at (1200 pixels for most web images), save as WebP or JPG at quality 75 to 85, and strip metadata. That takes a 5 MB phone photo to 100 to 200 KB with no visible difference. On Jobbit, pick "under 200 KB for a website" and "WebP" and the order of operations is done for you.

Can I resize many images at once for free?

Yes. Attach the whole folder, or a zip, to the Jobbit image resizer and one instruction covers all of them, within the free plan's 100 credits a day. Most free sites cap the batch, the file size or both on the free tier.

What is the correct size for a UK passport photo?

For a digital photo the UK government asks for at least 600 by 750 pixels, in colour, unedited, with a plain light background and the face taking up the right proportion of the frame; printed photos are 35 by 45 mm. Do not use filters or background removal on a passport photo; it will be rejected. The "UK passport photo" job on the form crops and resizes without editing the image itself.

Is the Jobbit image resizer really free and private?

Yes. You attach the images, pick the job, sign up with an email address (no card), and get a zip back; the free plan includes 100 credits a day. The images stay in your own workspace, are not published, and you can delete the chat whenever you like. Open the free image resizer and try one folder.