AltTextLab

AltTextLab generates alt text using image and page context, with ways to work through a website, browser extension, API or connected publishing tools. It is best suited to teams managing large image catalogs or recurring publishing workflows. Its flexible controls and integrations are compelling, but the free plan’s 25 monthly credits suit only light use.

Overview

Rather than treating an image as an isolated file, AltTextLab considers page titles, product information, nearby content and the image itself when generating descriptions. Users can steer the result with SEO keywords, writing style and desired length. That flexibility helps teams adapt output to different pages, though it also means users need to choose settings that fit their content.

Bulk processing handles image libraries in batches of tens of thousands of product photos, a meaningful advantage for catalog work compared with a workflow built around one-off uploads. Since one credit generates alt text for one image, volume translates directly into plan requirements. Supported formats include PNG, JPG, WebP, AVIF and SVG, and the product supports more than 130 languages.

Key features

• Contextual generation and controls: Page and product details inform descriptions; keywords, style and length settings let publishers shape the output for their needs.
• Bulk processing: Large batches suit e-commerce catalogs and agency projects, rather than only new images added one at a time.
• Workflow connections: Integrations include WordPress, Webflow, Craft CMS, Drupal, Shopify, WooCommerce, Magento, PrestaShop and Craft Commerce. A REST API, one-line Web Snippet, Google Tag Manager, Zapier, Make and Pipedream connectors broaden the options for fitting generation into publishing workflows.
• Browser extensions: Chrome, Firefox and Microsoft Edge extensions provide another route for browser-based work.
• Image handling and privacy: AltTextLab says it processes and discards images without storing them on its servers or using them to train AI models.

Pricing

The free plan costs nothing and includes 25 credits per month, unlimited websites, 20+ integrations and API access. Credits reset monthly without rollover, so unused capacity is lost; at one image per credit, it is better for occasional use than a steady catalog workflow.

Pro (annual) costs $4 a month, billed per month, billed annually, and includes 1,200 credits per year, higher credit packs, rollover and chat support. Pro (monthly) costs $5 a month, billed per month, for 100 credits per month with higher credit packs, rollover and chat support. The annual option provides a larger stated allowance at a lower monthly price, while the monthly plan avoids annual billing and is the more modest recurring allotment. Paid credits carry forward and do not expire.

Pay as you go costs $6, paid once, billed with no subscription, for 100 credits for $6 onwards. Its credits never expire, making it suitable for irregular projects, but the Web Snippet is not included. Scale starts at $200/month, billed monthly or annually, with custom credits, priority support and advanced security; it is aimed at larger organizations needing a tailored allowance and support rather than a fixed self-serve quota. Pro includes chat support. Accepted payment methods include major cards, PayPal, Apple Pay and Google Pay, with payments processed through Stripe.

Platforms

AltTextLab is available through web, API and browser extensions. Its CMS, commerce and automation connections give teams multiple ways to incorporate it into publishing, while the extensions suit browser-centered work. The breadth is useful for varied workflows, but buyers should choose a plan based on image volume as well as integration needs.

Who it's for

E-commerce teams and agencies handling large catalogs are the clearest fit: bulk processing and commerce integrations address recurring, high-volume work. Freelancers, solo creators, nonprofits and education organizations can use the web or extensions for smaller workloads, though the free tier’s 25 credits make it a narrow ongoing allowance. Enterprises may find Scale’s custom credits, priority support and advanced security more appropriate.

Pros and cons

• Pro: Context, keyword, style and length controls allow more tailored descriptions than a fixed-output workflow.
• Pro: Bulk processing and a broad set of CMS, commerce and automation connections suit catalog-scale publishing.
• Pro: Paid credits roll over and never expire, reducing pressure to use a monthly balance before it resets.
• Con: The free plan’s 25 monthly credits are a small allowance for image-heavy sites.
• Con: The $6 pay-as-you-go option excludes the Web Snippet, limiting its fit for users who need that integration without a subscription.
• Con: The annual Pro allowance is 1,200 credits per year; teams with sustained higher volume need higher credit packs or a different plan.

Alternatives

Alt Audit is worth considering if 800 credits per month, bulk processing, priority email support and exports in its $5 a month Starter plan better match a fixed monthly workload. AutoAlt.ai offers 50 free monthly credits with no credit card and a free trial, so it may suit readers wanting a larger free allowance to evaluate before paying. Altvisor is a web-only option whose free plan gives 50 images per month for one website and supports 24 EU languages; choose it if those constraints suit the project.

Uix Page Builder is a free WordPress plugin from a lab that makes web products including themes and plugins. AI Alt Text Generator offers 50 managed images per month per site on its free plan. AI Image Alt Text Generator is a free self-hosted plugin, but requires a configured AI provider, which may charge per API request.

Alt Text Studio has a $2.99, paid once option for 50 credits and a $4 a month Starter plan with 100 credits per month, making it another choice for buyers comparing small credit packs. AltText.ai offers a $3, paid once credit pack of 50 credits with no subscription, an alternative for occasional use.

For a broader shortlist, see AI Alt Text Generators.

Verdict

AltTextLab is a strong fit for e-commerce teams, agencies and publishers that need context-aware alt text across large libraries and want integrations or API access to connect generation to publishing. Its strongest case is the combination of batch processing, customization and broad workflow options. Look elsewhere if you need a generous free allowance or a pay-as-you-go plan that includes the Web Snippet; the free tier is small, and the one-time option omits that feature.