Florist reviewing a smartphone beside a colourful bouquet on a worktable, with the screen facing away
Illustrative photo review: decide which visible details a listener needs before writing the description.

Original alt text examples: replace vague labels with useful details

Imagined photoWeak descriptionMore useful description
Bouquet on a florist's tableBeautiful flowers, best floristPeach roses and purple irises wrapped in brown paper on a wooden table.
Product detailNew bag, shop nowClose-up of a navy canvas bag with a brass zip and two short handles.
Workshop posterOur exciting eventFlower-arranging workshop poster: Saturday, 14 November, 11 am at Willow Studio.
Instructional photographStep twoHands crossing two flower stems above a vase to support the next layer.
Comparison photographBefore and afterLeft: loose stems in a vase. Right: the same stems arranged into a rounded bouquet.

What Instagram alt text does for a photo

A photograph can carry information that the caption never states: which part of a product is open, how a demonstration is arranged or what a printed notice says. Alt text gives that visual information a written description. Instagram introduced custom descriptions alongside automatic image descriptions for people using screen readers. The description belongs to the photograph; it is a different field from the caption visible beneath the post.

Imagine a florist showing two ways to arrange the same stems. A caption saying choose your favourite does not explain either arrangement. A useful description identifies the rounded arrangement and the taller, looser version. That lets a reader understand what the choice concerns before deciding whether to respond. The description does not need to announce that the business is the area's best florist or reproduce its whole sales message.

This walkthrough concerns photographs in your own Instagram feed posts, including photo carousels. It does not establish that every Story, Reel, advertisement or publishing tool offers the same field. Start by identifying the actual format and account. If a teammate supplies the photograph, ask what it shows and confirm the answer against the final crop rather than describing a different version from memory.

Further reading: read Instagram's explanation of custom photo descriptions ↗

Add alt text before posting or edit an existing photo

Instagram's current iPhone and Android Help instructions use More options, then Write alt text during photo creation. Older instructions may refer to Advanced settings. The existing-post route begins with the post's own options and uses Edit alt text. Follow the saving prompts you see, including the final confirmation when leaving the wider edit screen.

Prepare the description before you enter the publishing flow if that helps you concentrate. Keep the final photograph beside the draft, then paste or type the matching line into its field. This is especially useful when two product photographs differ only in colour or angle. Do not publish a duplicate photo merely to add a description to an older owned post; first check its existing editing controls.

On a computer, Instagram documents a separate route: upload and edit the photo, continue with Next, open Accessibility, enter the description and Share. For an existing photo, use Options, Edit, Accessibility and Done. Do not import another platform's character limit or editing deadline into Instagram. Respect any counter in your own interface and prioritise a concise, useful description.

  • Select and edit your photograph in Instagram, then continue to the post details screen.
  • Open More options or Advanced settings, depending on your app, and find Write alt text in the accessibility area.
  • Enter the image description, save it with Done or the displayed confirmation, then finish sharing the post.
  • For an existing owned photo, open its three-dot options, choose Edit, then Edit alt text; save the description and finish the post edit.
Further reading: open Instagram's photo alt text Help page ↗

Describe each carousel image in its final order

A carousel can change meaning from one photograph to the next. A flower tutorial might move from the materials to a hand position and finally the finished vase. Reusing flower arrangement on all three images loses the instruction. Give each photo the description that explains its own contribution, then check the sequence after any reordering or replacement during preparation.

For that imaginary tutorial, the first description could identify six cut stems beside an empty glass vase. The next could describe hands crossing two stems at the vase opening. The last could identify the finished upright arrangement. These lines do not need invented step numbers when the sequence is already clear, but naming a real step can help when the visual itself presents that instruction.

Review meaningful differences between similar images. A bag photographed from the front and inside has two different jobs: shape and storage. Describe the relevant details instead of repeating the product name in every possible search phrase. If the order changes, compare the saved descriptions with the final images again. A complete list of descriptions is useful only when each one belongs to the correct photograph.

Write the subject, action and detail that matter

Begin with what the photograph is communicating in this post. Identify the main subject, then include the action or distinguishing detail needed to understand it. W3C recommends putting the important information first and keeping image alternatives concise. Apply that principle to the reader's task: a materials demonstration needs different detail from a portrait of the person teaching it.

For the florist, hands trimming a rose stem above a clear vase is more useful than a long inventory of scissors, desk edges and blurred shelves. When the image demonstrates a cutting angle, that angle becomes relevant. When it simply introduces the shop owner, the person and setting may be the point. Decide which information changes the reader's understanding before adding background details.

Use plain sentences and ordinary punctuation. Avoid guessing someone's emotions, identity or personal circumstances from appearance. An approved name may be appropriate when the post introduces that person, but confirm it. If you cannot identify a flower variety accurately, describe its visible shape or colour instead of inventing a specialist label. A reliable general description serves a listener better than an impressive but incorrect one.

Further reading: review W3C's advice on writing concise image alternatives ↗

Use examples to improve a weak description

The comparison table above uses imagined photographs and original descriptions. Its purpose is to show the writing decision, not to present a required formula. Beautiful flowers describes an opinion; peach roses and purple irises identifies visible material. Shop now tells someone to act; the bag's colour, fastening and handles explain what the photograph shows. Keep the invitation in the visible caption when it belongs there.

Try a short editing exercise with one of your own photos. Write the first description that comes to mind, then ask what a reader still could not explain. If the answer is which item, what action or what changed, add that detail. Next remove words that do not help answer the question. Finally, check every statement against the actual crop that will be shared.

Consider a comparison image whose left side shows a loose bunch of stems and whose right side shows the finished bouquet. Calling it before and after is incomplete if the difference matters. Describe that difference directly. If someone else reviews the line, ask what they understood rather than asking whether it sounds professional. The useful test is whether the description communicates the intended visual information.

Yellow and purple bouquet in a blue vase beside its printed photograph and a blank notebook on a florist's table
Illustrative writing exercise: describe the arrangement in the photograph rather than adding sales claims.

Handle posters, instructions and charts without losing information

Text embedded in a photograph can contain the entire reason for the post. A workshop poster may show a date, time and place that the caption omits. Check that important wording is available as readable text too. The poster example above is fictional; before publishing a real announcement, confirm those details with the organiser rather than transcribing an outdated draft.

For a dense chart, describe its main message and provide the detailed information in an accessible text form. W3C's complex-image guidance distinguishes a short identification from a fuller explanation of essential information. On Instagram, a clearly written caption or a properly identified accessible page can carry detail that would make one photo description difficult to follow. Make the destination easy to find through a route your account actually provides.

The florist might post a graphic comparing three vase sizes. A short description identifies the comparison, while the visible caption lists the sizes and explains which arrangement each suits. If exact measurements matter, provide them accurately in text. Avoid an unexplained instruction to see the chart, and do not treat a short alt text field as the only place where customers can obtain essential information.

Further reading: read W3C's explanation of complex image descriptions ↗

Review automatic descriptions with the original photograph

Instagram can generate photo descriptions automatically. Meta explains that automatic alternative text uses image recognition and acknowledges uncertainty in what the system identifies. It can help provide a starting description, but that does not establish that every detail, relationship or purpose of your particular photograph has been understood. Review the content you control when preparing an important post.

A generic description of flowers on a table might identify the scene while missing that the photograph demonstrates how to hold two stems. Your own knowledge of the post's purpose can help you write the relevant detail. Still, check it against the image. Knowing that the tutorial concerns stem placement does not justify describing a hand position that is outside the crop or hidden by another object.

If you use a separate writing assistant, treat its output as a draft. Confirm names, quantities and visible actions before saving it. You do not need to upload customer photographs to an unfamiliar service to complete this task. Write directly from the photograph when that is sufficient, and follow your team's existing permissions for any private or client material used in a review.

Further reading: read Meta's explanation of automatic photo descriptions ↗

Keep captions, hashtags and search claims separate

Use the visible caption for the context a visitor needs: why you shared the photo, what the offer involves or what question you are asking. Use alt text for the visual information. The two can work together without being identical. Copying a long launch announcement into every image description makes it harder to find the detail that differs between the photographs.

Leave keyword lists out of the description. Repeating florist near me, best flowers and birthday bouquet does not explain how the photographed arrangement looks. Use an accurate subject name when it describes the image naturally. Keep hashtag research as a separate task about relevant discovery terms, with no obligation to insert those terms into every accessibility field.

This guide does not establish a ranking benefit from editing alt text. If views change after a description update, that observation alone does not show what caused the change. Topic, timing, promotion and other changes may also differ. Evaluate the description by whether it conveys the image accurately, and assess audience behaviour through the reporting appropriate to the post format.

Further reading: understand Instagram hashtags as a separate discovery task ↗compare likes and views without mixing their meaning ↗

Treat video accessibility as a separate content task

A photo alt text walkthrough is not a complete accessibility plan for Reels or Stories. Moving images and sound can convey information over time. Captions represent spoken material and relevant sounds; descriptions communicate important visual information. W3C's audio and video guidance explains why those needs differ. One short description of a cover photo cannot do every job for a longer demonstration.

If the florist films the arrangement process, plan to explain the important actions as they happen and review the accuracy of any captions provided. A viewer should not have to guess what the presenter silently points toward. Decide what needs to be spoken, described or supplied in readable supporting text during preparation, when changing the recording is still straightforward.

Check the controls available for the actual video format instead of assuming a photo field will appear. This article does not claim that every video surface offers custom photo alt text. If the problem is a lower Reel view count, investigate the relevant reporting and content separately. Accessibility work remains useful without promising a particular distribution result or diagnosing an algorithm problem.

Further reading: plan accessible audio and video with W3C ↗add and check captions on an Instagram Reel ↗

Give a team a short description and saving checklist

For shared publishing, keep the final image and its proposed description together. A simple note can identify the post, image order, description and reviewer. The florist's colleague can check whether the named flowers are correct while the publisher confirms the final crop. Assign someone to save and verify the text so the task does not fall between the person preparing photographs and the person sharing them.

If the expected control is missing, first confirm the account, ownership and media format. Look inside the post's editing or accessibility options rather than changing unrelated privacy settings. Use the Help page for your current interface, and check whether your normal publishing tool supports the description. Do not assume that text entered into a planning document has automatically reached Instagram.

After saving, reopen the relevant edit field and check the stored text and image pairing. That verifies the saved wording; it does not by itself test every screen reader experience. A real accessibility review can also include feedback from people who use those tools. For older posts, prioritise useful current information such as an active tutorial or service explanation, and review its accuracy before restoring archived content.

  • Match: does every description belong to the final photograph and carousel position?
  • Meaning: can someone understand the main visual information without seeing the photograph?
  • Accuracy: are the product, action, names and any transcribed wording correct?
  • Clarity: remove repeated promotions, unnecessary decoration and irrelevant keywords.
  • Completeness: place essential longer information in a readable caption or an accessible destination too.
  • Confirmation: save the changes and reopen the post's edit controls to check the stored text.
Florist and coworker reviewing a printed flower photograph beside a notebook and a tablet angled away
Illustrative team review: match each final photograph with its description before sharing the post.
Further reading: review archived Instagram posts before restoring older content ↗

Finish the content review before planning promotion

Before sharing or promoting a post, check whether its intended reader can understand the content and take the stated next step. For a photo, that includes a useful description and an accurate caption. For a video, it includes the separate audio, visual and caption decisions discussed above. Resolve missing information because readers need it, without making accessibility conditional on the size of the audience.

If you separately consider an Instagram likes package for the photo, review the eligible public post, quantity, current price and terms on the matching service page. You can complete every description and content check in this guide without buying anything. A likes package does not write alt text, explain a confusing photograph or establish that the content is accessible. Keep those responsibilities with the content review.

End with one practical habit: whenever the final photograph changes, review its description too. A new crop can remove the hand gesture you described, while a replacement product can change the relevant detail. Matching the saved wording to the actual published image is an achievable check your team can repeat, without needing a speculative ranking theory or a promised growth result.

Further reading: review Instagram likes packages for a ready public photo ↗read the Instagram likes purchase checklist ↗
COMMON QUESTIONS

Frequently asked questions

What is alt text on Instagram?

It is a written description attached to a photo for people using a screen reader. Describe the photograph's useful visual information. Keep the visible caption available for the wider story, announcement or invitation to respond.

Where do I add alt text before posting?

In the phone posting flow, look inside More options or Advanced settings for the accessibility area and Write alt text. Save the description before finishing the post. Labels can vary, so use the current controls shown in your app.

Can I edit Instagram alt text after posting?

On an owned photo, open the post's options, choose Edit and look for Edit alt text. Save the description and complete the wider post edit. Check the stored wording afterward rather than assuming that leaving the field saved every change.

Does each carousel photo need its own description?

Write a description for each image that communicates its useful visual information. Similar photographs can show different details. Review the matching descriptions again if you change the image order or replace a photograph.

How long should Instagram alt text be?

Use a concise description that communicates the image's purpose. Follow any limit shown in your own interface rather than copying another platform's limit. For complex information, provide a fuller readable explanation alongside the post where needed.

Should I put keywords and hashtags in alt text?

Describe the photograph accurately with natural language. A relevant subject name may belong there; a repeated keyword list does not help explain the image. Keep hashtag selection and the visible caption as separate publishing tasks.

Does this photo workflow also explain Reel accessibility?

No. Video involves moving visuals and sound, so review captions, useful narration and any additional description separately. Do not assume that the same custom photo description field is available for every format.

Will changing alt text increase my Instagram views?

This guide does not establish that outcome. The reason to write a description is to communicate the photograph. A later view-count change does not prove that the alt text edit caused it, particularly when other publishing conditions changed too.

NEXT STEP

Compare Instagram Likes packages.

Prepare the public destination, then review the quantity and terms that fit your goal.

Review likes packages for a ready public Instagram photo
EXPLORE MOREBrowse all Instagram guides